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Forget MPG: Being smart about car fuel efficiency | Rick Larrick | TEDxDuke


so in 2008 a gallon of gasoline hit $4

so in 2008 a gallon of gasoline hit $4 it was the highest price had ever been

it was the highest price had ever been

it was the highest price had ever been and like many of you I was interested in

and like many of you I was interested in

and like many of you I was interested in trying to use less gas partly because of

trying to use less gas partly because of

trying to use less gas partly because of the cost but also because of the

the cost but also because of the

the cost but also because of the long-term effect on the environment and

long-term effect on the environment and

long-term effect on the environment and so a colleague at Fuqua Jack Saul and I

so a colleague at Fuqua Jack Saul and I

so a colleague at Fuqua Jack Saul and I started to carpool in his hybrid and one

started to carpool in his hybrid and one

started to carpool in his hybrid and one of the interesting features the hybrid

of the interesting features the hybrid

of the interesting features the hybrid had was a cool screen that you see in

had was a cool screen that you see in

had was a cool screen that you see in the middle of this picture that showed

the middle of this picture that showed

the middle of this picture that showed the MPGs we were getting as her driving

the MPGs we were getting as her driving

the MPGs we were getting as her driving to work so we both like numbers and he

to work so we both like numbers and he

to work so we both like numbers and he started to ask me quizzes about mpg and

started to ask me quizzes about mpg and

started to ask me quizzes about mpg and one of one example of it was imagine you

one of one example of it was imagine you

one of one example of it was imagine you drove uphill for a hundred miles and you

drove uphill for a hundred miles and you

drove uphill for a hundred miles and you got 10 miles per gallon and then imagine

got 10 miles per gallon and then imagine

got 10 miles per gallon and then imagine you turned around and drove back the

you turned around and drove back the

you turned around and drove back the same hundred miles downhill but got a

same hundred miles downhill but got a

same hundred miles downhill but got a hundred miles per gallon what was your

hundred miles per gallon what was your

hundred miles per gallon what was your average miles per gallon so this is he

average miles per gallon so this is he

average miles per gallon so this is he was giving me little quizzes like this

was giving me little quizzes like this

was giving me little quizzes like this it turns out I was failing the quizzes I

it turns out I was failing the quizzes I

it turns out I was failing the quizzes I was not doing the right math with mpg

was not doing the right math with mpg

was not doing the right math with mpg and it led us both to think about well

and it led us both to think about well

and it led us both to think about well what information do we have available to

what information do we have available to

what information do we have available to make smart energy energy decisions and

make smart energy energy decisions and

make smart energy energy decisions and can we improve that information and

can we improve that information and

can we improve that information and that’s what I’m going to talk to you

that’s what I’m going to talk to you

that’s what I’m going to talk to you about today now mpg is very familiar to

about today now mpg is very familiar to

about today now mpg is very familiar to Americans and in fact because we think

Americans and in fact because we think

Americans and in fact because we think it’s important to reason with mpg the

it’s important to reason with mpg the

it’s important to reason with mpg the EPA in the 1970s said every new car

EPA in the 1970s said every new car

EPA in the 1970s said every new car needs to have it on the side of the

needs to have it on the side of the

needs to have it on the side of the vehicle and anyone who’s bought a new

vehicle and anyone who’s bought a new

vehicle and anyone who’s bought a new car has seen an updated version of this

car has seen an updated version of this

car has seen an updated version of this sticker that’s now been around for a

sticker that’s now been around for a

sticker that’s now been around for a long time so can we make good decisions

long time so can we make good decisions

long time so can we make good decisions of mpg that’s essentially the challenge

of mpg that’s essentially the challenge

of mpg that’s essentially the challenge now the idea of studying good

now the idea of studying good

now the idea of studying good decision-making really has this

decision-making really has this

decision-making really has this interesting history because two

interesting history because two

interesting history because two different disciplines have focused on

different disciplines have focused on

different disciplines have focused on our decision-making and really they

our decision-making and really they

our decision-making and really they worked in separation for many years so

worked in separation for many years so

worked in separation for many years so one is economics where economics assumes

one is economics where economics assumes

one is economics where economics assumes that we’re very rational as we make

that we’re very rational as we make

that we’re very rational as we make decisions we’re fully informed we

decisions we’re fully informed we

decisions we’re fully informed we calculate everything correctly we’re

calculate everything correctly we’re

calculate everything correctly we’re going to maximize the money for

going to maximize the money for

going to maximize the money for ourselves at the same time psychology

ourselves at the same time psychology

ourselves at the same time psychology was studying many questions about

was studying many questions about

was studying many questions about decision making but they were taking

decision making but they were taking

decision making but they were taking different assumptions to it that we rely

different assumptions to it that we rely

different assumptions to it that we rely a lot on our intuition

a lot on our intuition

a lot on our intuition that we don’t have full information

that we don’t have full information

that we don’t have full information therefore that we have complex interests

therefore that we have complex interests

therefore that we have complex interests and we take a lot of shortcuts and

and we take a lot of shortcuts and

and we take a lot of shortcuts and what’s interesting about these two

what’s interesting about these two

what’s interesting about these two parallel fields was they eventually

parallel fields was they eventually

parallel fields was they eventually started to speak to each other and there

started to speak to each other and there

started to speak to each other and there was a recognition that we really have to

was a recognition that we really have to

was a recognition that we really have to work in a space between the rational

work in a space between the rational

work in a space between the rational assumptions and economics and these

assumptions and economics and these

assumptions and economics and these problems that psychology identified and

problems that psychology identified and

problems that psychology identified and so the field of behavioral economics

so the field of behavioral economics

so the field of behavioral economics emerged which really looks at the

emerged which really looks at the

emerged which really looks at the overlap let’s accept the people don’t

overlap let’s accept the people don’t

overlap let’s accept the people don’t make great decisions what can we do to

make great decisions what can we do to

make great decisions what can we do to help them make better decisions now

help them make better decisions now

help them make better decisions now Daniel Kahneman was a Nobel Prize

Daniel Kahneman was a Nobel Prize

Daniel Kahneman was a Nobel Prize winning a psychologist who happen to win

winning a psychologist who happen to win

winning a psychologist who happen to win the Nobel Prize in Economics and he did

the Nobel Prize in Economics and he did

the Nobel Prize in Economics and he did it because he essentially spoke to

it because he essentially spoke to

it because he essentially spoke to economists and gave them systematic

economists and gave them systematic

economists and gave them systematic evidence that people are systematically

evidence that people are systematically

evidence that people are systematically deficient to how they make decisions and

deficient to how they make decisions and

deficient to how they make decisions and in a 2011 book called Thinking Fast and

in a 2011 book called Thinking Fast and

in a 2011 book called Thinking Fast and Slow he coined a phrase Wiz iottie

Slow he coined a phrase Wiz iottie

Slow he coined a phrase Wiz iottie which simply means what you see is all

which simply means what you see is all

which simply means what you see is all there is and by that he meant to say

there is and by that he meant to say

there is and by that he meant to say that when people get information they

that when people get information they

that when people get information they get trapped by it they do a poor job of

get trapped by it they do a poor job of

get trapped by it they do a poor job of figuring out how to convert it into

figuring out how to convert it into

figuring out how to convert it into something they really care about and

something they really care about and

something they really care about and they just try to work with whatever they

they just try to work with whatever they

they just try to work with whatever they see and what I’m gonna do today is try

see and what I’m gonna do today is try

see and what I’m gonna do today is try to give you four principles for getting

to give you four principles for getting

to give you four principles for getting better information when you make a car

better information when you make a car

better information when you make a car buying decision and in fact general

buying decision and in fact general

buying decision and in fact general decisions about energy use and it

decisions about energy use and it

decisions about energy use and it creates an acronym of course

creates an acronym of course

creates an acronym of course cor e so I’m going to tell you to focus

cor e so I’m going to tell you to focus

cor e so I’m going to tell you to focus on consumption metrics which I’m going

on consumption metrics which I’m going

on consumption metrics which I’m going to illustrate for you that you should

to illustrate for you that you should

to illustrate for you that you should know your objectives meaning and then

know your objectives meaning and then

know your objectives meaning and then you don’t care about gas you care about

you don’t care about gas you care about

you don’t care about gas you care about costs and the environment so know what

costs and the environment so know what

costs and the environment so know what you’re trying to achieve and get

you’re trying to achieve and get

you’re trying to achieve and get information on it there’s a value of

information on it there’s a value of

information on it there’s a value of relative comparisons it’s often hard to

relative comparisons it’s often hard to

relative comparisons it’s often hard to make sense of numbers without knowing

make sense of numbers without knowing

make sense of numbers without knowing how big or small they are compared to

how big or small they are compared to

how big or small they are compared to something else then finally expand

something else then finally expand

something else then finally expand outcomes don’t think about this week’s

outcomes don’t think about this week’s

outcomes don’t think about this week’s gas consumption but think about the

gas consumption but think about the

gas consumption but think about the effect of owning one vehicle over

effect of owning one vehicle over

effect of owning one vehicle over another over the course of a year or

another over the course of a year or

another over the course of a year or seven years all right

seven years all right

seven years all right let’s do a quick quiz so imagine a

let’s do a quick quiz so imagine a

let’s do a quick quiz so imagine a family has two vehicles they drive both

family has two vehicles they drive both

family has two vehicles they drive both the same distance over the course of a

the same distance over the course of a

the same distance over the course of a year and they can trade in one and they

year and they can trade in one and they

year and they can trade in one and they want to get a more efficient one one

want to get a more efficient one one

want to get a more efficient one one possibility would be to trade in a 10

possibility would be to trade in a 10

possibility would be to trade in a 10 MPG vehicle for a 20 mpg vehicle and the

MPG vehicle for a 20 mpg vehicle and the

MPG vehicle for a 20 mpg vehicle and the other is to trade in a 20 mpg vehicle

other is to trade in a 20 mpg vehicle

other is to trade in a 20 mpg vehicle for a 50 mpg vehicle now which of these

for a 50 mpg vehicle now which of these

for a 50 mpg vehicle now which of these trade ins do you think will

trade ins do you think will

trade ins do you think will more gas for the family so raise your

more gas for the family so raise your

more gas for the family so raise your hand how many think a would save more

hand how many think a would save more

hand how many think a would save more gas alright how about B okay I think I

gas alright how about B okay I think I

gas alright how about B okay I think I saw more hands for B and that’s in fact

saw more hands for B and that’s in fact

saw more hands for B and that’s in fact what most people say B is very

what most people say B is very

what most people say B is very attractive because it’s a bigger

attractive because it’s a bigger

attractive because it’s a bigger difference 2250 s a thirty mile per

difference 2250 s a thirty mile per

difference 2250 s a thirty mile per gallon difference and it’s a bigger

gallon difference and it’s a bigger

gallon difference and it’s a bigger percentage improvement if you’re trying

percentage improvement if you’re trying

percentage improvement if you’re trying to think in percentage terms it turns

to think in percentage terms it turns

to think in percentage terms it turns out that’s wrong a in fact saves more

out that’s wrong a in fact saves more

out that’s wrong a in fact saves more gas in fact it saves almost twice as

gas in fact it saves almost twice as

gas in fact it saves almost twice as much gas as B does now here’s the math

much gas as B does now here’s the math

much gas as B does now here’s the math that helps make that clear in this table

that helps make that clear in this table

that helps make that clear in this table on the left hand side is miles per

on the left hand side is miles per

on the left hand side is miles per gallon and they’re not spaced equally

gallon and they’re not spaced equally

gallon and they’re not spaced equally and you’ll soon see why that’s the case

and you’ll soon see why that’s the case

and you’ll soon see why that’s the case the right hand column tells you how much

the right hand column tells you how much

the right hand column tells you how much gas you’re going to use driving a

gas you’re going to use driving a

gas you’re going to use driving a hundred miles with a vehicle that has

hundred miles with a vehicle that has

hundred miles with a vehicle that has that MPG and the math is simple you just

that MPG and the math is simple you just

that MPG and the math is simple you just divide the hundred by the mpg and you

divide the hundred by the mpg and you

divide the hundred by the mpg and you get the gallons of gas but the clear

get the gallons of gas but the clear

get the gallons of gas but the clear thing that pops out here is that every

thing that pops out here is that every

thing that pops out here is that every mpg improvement in the teens tends to be

mpg improvement in the teens tends to be

mpg improvement in the teens tends to be very helpful in reducing a gallon of gas

very helpful in reducing a gallon of gas

very helpful in reducing a gallon of gas that’s being used and if you look at the

that’s being used and if you look at the

that’s being used and if you look at the change then from 10 to 20 as I had

change then from 10 to 20 as I had

change then from 10 to 20 as I had proposed in the slide before you can see

proposed in the slide before you can see

proposed in the slide before you can see you’re going from using 10 gallons of

you’re going from using 10 gallons of

you’re going from using 10 gallons of gas down to five you’re saving five

gas down to five you’re saving five

gas down to five you’re saving five gallons of gas with that trade-in if you

gallons of gas with that trade-in if you

gallons of gas with that trade-in if you look at the twenty to fifty improvement

look at the twenty to fifty improvement

look at the twenty to fifty improvement you’re going from using five gallons

you’re going from using five gallons

you’re going from using five gallons down to two that’s only a three gallon

down to two that’s only a three gallon

down to two that’s only a three gallon savings and it’s just very

savings and it’s just very

savings and it’s just very counterintuitive to people that there’s

counterintuitive to people that there’s

counterintuitive to people that there’s such a curvilinear eighty which I’ll

such a curvilinear eighty which I’ll

such a curvilinear eighty which I’ll also show in the next graph but but one

also show in the next graph but but one

also show in the next graph but but one striking thing here is that a 10 to 11

striking thing here is that a 10 to 11

striking thing here is that a 10 to 11 improvement is about the same magnitude

improvement is about the same magnitude

improvement is about the same magnitude of benefit as a 33 to 50 they saved the

of benefit as a 33 to 50 they saved the

of benefit as a 33 to 50 they saved the same amount of gas one gallon every

same amount of gas one gallon every

same amount of gas one gallon every hundred miles and so those of you who

hundred miles and so those of you who

hundred miles and so those of you who are more visual and think in terms of

are more visual and think in terms of

are more visual and think in terms of graphs this is a graph of miles per

graphs this is a graph of miles per

graphs this is a graph of miles per gallon along the x-axis and then the

gallon along the x-axis and then the

gallon along the x-axis and then the amount of gas you use per hundred miles

amount of gas you use per hundred miles

amount of gas you use per hundred miles on the y-axis and the same problem that

on the y-axis and the same problem that

on the y-axis and the same problem that we just saw 10 to 20 reduces the gas

we just saw 10 to 20 reduces the gas

we just saw 10 to 20 reduces the gas that you use by five gallons 20 to 50

that you use by five gallons 20 to 50

that you use by five gallons 20 to 50 reduces it by only three and so the

reduces it by only three and so the

reduces it by only three and so the implication of this is think in terms of

implication of this is think in terms of

implication of this is think in terms of consumption of gas not mpg but instead

consumption of gas not mpg but instead

consumption of gas not mpg but instead this measure of gallons per hundred

this measure of gallons per hundred

this measure of gallons per hundred miles because then you can actually get

miles because then you can actually get

miles because then you can actually get an accurate picture of how much gas

an accurate picture of how much gas

an accurate picture of how much gas you’re going to use when you compare one

you’re going to use when you compare one

you’re going to use when you compare one vehicle to another so that’s principal

vehicle to another so that’s principal

vehicle to another so that’s principal when I’m

when I’m

when I’m look at consumption look at gallons per

look at consumption look at gallons per

look at consumption look at gallons per hundred miles now a second principle is

hundred miles now a second principle is

hundred miles now a second principle is be aware of what your objectives are and

be aware of what your objectives are and

be aware of what your objectives are and make sure you get information that helps

make sure you get information that helps

make sure you get information that helps you figure out whether you’re achieving

you figure out whether you’re achieving

you figure out whether you’re achieving those objectives in a set of studies

those objectives in a set of studies

those objectives in a set of studies with other colleagues we had people

with other colleagues we had people

with other colleagues we had people think about the trade-off between buying

think about the trade-off between buying

think about the trade-off between buying a cheaper car let’s say $20,000 vehicle

a cheaper car let’s say $20,000 vehicle

a cheaper car let’s say $20,000 vehicle that gets 20 miles per gallon and a more

that gets 20 miles per gallon and a more

that gets 20 miles per gallon and a more expensive car $25,000 car but one that

expensive car $25,000 car but one that

expensive car $25,000 car but one that gets 30 miles per gallon is that mpg

gets 30 miles per gallon is that mpg

gets 30 miles per gallon is that mpg improvement which means you’re gonna

improvement which means you’re gonna

improvement which means you’re gonna have lower gas costs in the future worth

have lower gas costs in the future worth

have lower gas costs in the future worth the additional costs upfront now the

the additional costs upfront now the

the additional costs upfront now the objectives that people care about are

objectives that people care about are

objectives that people care about are things like costs and also the

things like costs and also the

things like costs and also the environmental impact and one of the

environmental impact and one of the

environmental impact and one of the insights we had was that we thought that

insights we had was that we thought that

insights we had was that we thought that when people just use mpg they may not

when people just use mpg they may not

when people just use mpg they may not know the full implications for those

know the full implications for those

know the full implications for those other things the costs and the

other things the costs and the

other things the costs and the environmental impact and so we did a

environmental impact and so we did a

environmental impact and so we did a study where we measured people’s

study where we measured people’s

study where we measured people’s attitudes about the environment are they

attitudes about the environment are they

attitudes about the environment are they essentially kind of hostile to the

essentially kind of hostile to the

essentially kind of hostile to the environment low in terms of their

environment low in terms of their

environment low in terms of their pro-environmental attitude or their very

pro-environmental attitude or their very

pro-environmental attitude or their very high and on the x-axis on this graph you

high and on the x-axis on this graph you

high and on the x-axis on this graph you can see it’s ranging from a red minus

can see it’s ranging from a red minus

can see it’s ranging from a red minus sign up to a green plus sign so this is

sign up to a green plus sign so this is

sign up to a green plus sign so this is our way of trying to capture their prior

our way of trying to capture their prior

our way of trying to capture their prior attitudes toward the environment and

attitudes toward the environment and

attitudes toward the environment and when we told them the kind of choice

when we told them the kind of choice

when we told them the kind of choice that you just saw and we look to see are

that you just saw and we look to see are

that you just saw and we look to see are they willing to buy the more efficient

they willing to buy the more efficient

they willing to buy the more efficient car we found that they weren’t acting on

car we found that they weren’t acting on

car we found that they weren’t acting on their attitudes these environmental

their attitudes these environmental

their attitudes these environmental attitudes they seemed to be kind of no

attitudes they seemed to be kind of no

attitudes they seemed to be kind of no matter what your attitudes were you had

matter what your attitudes were you had

matter what your attitudes were you had a favorable attitude toward the car but

a favorable attitude toward the car but

a favorable attitude toward the car but you weren’t sensitive to your own

you weren’t sensitive to your own

you weren’t sensitive to your own preferences but we realized that if we

preferences but we realized that if we

preferences but we realized that if we can actually give people something other

can actually give people something other

can actually give people something other than fuel cost as the indicator of how

than fuel cost as the indicator of how

than fuel cost as the indicator of how efficient the car is and we gave them

efficient the car is and we gave them

efficient the car is and we gave them greenhouse gas emissions and

greenhouse gas emissions and

greenhouse gas emissions and environmental income suddenly people

environmental income suddenly people

environmental income suddenly people then begin to act on their stable

then begin to act on their stable

then begin to act on their stable internal attitudes toward the

internal attitudes toward the

internal attitudes toward the environment and we think of this as a

environment and we think of this as a

environment and we think of this as a kind of sign post effect it sometimes

kind of sign post effect it sometimes

kind of sign post effect it sometimes have to be reminded about where you want

have to be reminded about where you want

have to be reminded about where you want to go and how to get there and so

to go and how to get there and so

to go and how to get there and so there’s a value then to having cars

there’s a value then to having cars

there’s a value then to having cars labeled not just with MPG and fuel costs

labeled not just with MPG and fuel costs

labeled not just with MPG and fuel costs but with the greenhouse gas ratings so

but with the greenhouse gas ratings so

but with the greenhouse gas ratings so that people remember to act on it and

that people remember to act on it and

that people remember to act on it and know how to act on it okay

know how to act on it okay

know how to act on it okay if you got a natural gas bill and you

if you got a natural gas bill and you

if you got a natural gas bill and you found out that you were using 163 therms

found out that you were using 163 therms

found out that you were using 163 therms of natural gas would you know whether

of natural gas would you know whether

of natural gas would you know whether this is a bad or a good thing

this is a bad or a good thing

this is a bad or a good thing let’s people have no idea what a therm

let’s people have no idea what a therm

let’s people have no idea what a therm is so it’s hard to know whether this is

is so it’s hard to know whether this is

is so it’s hard to know whether this is a lot or a little whether you’re doing

a lot or a little whether you’re doing

a lot or a little whether you’re doing well or doing poorly and so a third

well or doing poorly and so a third

well or doing poorly and so a third basic principle is the value of a

basic principle is the value of a

basic principle is the value of a relative comparison for energy numbers

relative comparison for energy numbers

relative comparison for energy numbers because we often don’t know what’s big

because we often don’t know what’s big

because we often don’t know what’s big and what’s small and one of the

and what’s small and one of the

and what’s small and one of the interesting pioneers in this space it

interesting pioneers in this space it

interesting pioneers in this space it really has made a lot of progress

really has made a lot of progress

really has made a lot of progress helping us understand the psychology of

helping us understand the psychology of

helping us understand the psychology of how people make these decisions is a

how people make these decisions is a

how people make these decisions is a company called oak power which took

company called oak power which took

company called oak power which took social psychology research from about 10

social psychology research from about 10

social psychology research from about 10 years ago redesigned the kinds of labels

years ago redesigned the kinds of labels

years ago redesigned the kinds of labels and feedback sheets that we get in our

and feedback sheets that we get in our

and feedback sheets that we get in our mail about our energy use and

mail about our energy use and

mail about our energy use and essentially created a comparison for

essentially created a comparison for

essentially created a comparison for where you are where all of your

where you are where all of your

where you are where all of your neighbors are and then in some cases

neighbors are and then in some cases

neighbors are and then in some cases where the most efficient neighbors are

where the most efficient neighbors are

where the most efficient neighbors are in terms of their overall energy use and

in terms of their overall energy use and

in terms of their overall energy use and what’s clever about this is because it’s

what’s clever about this is because it’s

what’s clever about this is because it’s a comparison to your neighbors it means

a comparison to your neighbors it means

a comparison to your neighbors it means that they live in the same climate as

that they live in the same climate as

that they live in the same climate as you they tend to live in the same size

you they tend to live in the same size

you they tend to live in the same size house and age house and so it’s a fair

house and age house and so it’s a fair

house and age house and so it’s a fair apples to apples comparison and now in

apples to apples comparison and now in

apples to apples comparison and now in the case of this example if you find out

the case of this example if you find out

the case of this example if you find out that you’re using 163 therms you find

that you’re using 163 therms you find

that you’re using 163 therms you find out that you are actually worse than the

out that you are actually worse than the

out that you are actually worse than the average neighbor and it might lead you

average neighbor and it might lead you

average neighbor and it might lead you to reflect on what am I doing

to reflect on what am I doing

to reflect on what am I doing differently what could I do to become

differently what could I do to become

differently what could I do to become more efficient and save money and help

more efficient and save money and help

more efficient and save money and help the environment whatever my concerns are

the environment whatever my concerns are

the environment whatever my concerns are so there’s just a recognition that if we

so there’s just a recognition that if we

so there’s just a recognition that if we give people comparisons it can motivate

give people comparisons it can motivate

give people comparisons it can motivate them to catch up with their neighbors

them to catch up with their neighbors

them to catch up with their neighbors and then the value of having the

and then the value of having the

and then the value of having the efficient neighbor number which of

efficient neighbor number which of

efficient neighbor number which of course here is very low meaning it’s

course here is very low meaning it’s

course here is very low meaning it’s very good allows those who are already

very good allows those who are already

very good allows those who are already better than average to have yet another

better than average to have yet another

better than average to have yet another goal to strive for and want to catch up

goal to strive for and want to catch up

goal to strive for and want to catch up with so the comparison helps motivate us

with so the comparison helps motivate us

with so the comparison helps motivate us to do a better job all right

to do a better job all right

to do a better job all right and then a final principle is the value

and then a final principle is the value

and then a final principle is the value of looking at larger numbers and

of looking at larger numbers and

of looking at larger numbers and thinking in terms of expanded outcomes

thinking in terms of expanded outcomes

thinking in terms of expanded outcomes rather than kind of small ones and I’m

rather than kind of small ones and I’m

rather than kind of small ones and I’m gonna use a non energy example to

gonna use a non energy example to

gonna use a non energy example to illustrate this because it does a good

illustrate this because it does a good

illustrate this because it does a good job of illustrating it and then come

job of illustrating it and then come

job of illustrating it and then come back to energy so a few colleagues and I

back to energy so a few colleagues and I

back to energy so a few colleagues and I presented subjects with a choice of two

presented subjects with a choice of two

presented subjects with a choice of two cellphone plans plan a

cellphone plans plan a

cellphone plans plan a a higher price per year but it had fewer

a higher price per year but it had fewer

a higher price per year but it had fewer dropped calls per hundred calls and you

dropped calls per hundred calls and you

dropped calls per hundred calls and you can think of drop calls as being a

can think of drop calls as being a

can think of drop calls as being a quality measure so you want fewer of

quality measure so you want fewer of

quality measure so you want fewer of them you don’t want to get disconnected

them you don’t want to get disconnected

them you don’t want to get disconnected so plan a had 4.2 drop calls per hundred

so plan a had 4.2 drop calls per hundred

so plan a had 4.2 drop calls per hundred for a price of 300 $84 Plan B had more

for a price of 300 $84 Plan B had more

for a price of 300 $84 Plan B had more dropped calls 6.5 but at a lower price

dropped calls 6.5 but at a lower price

dropped calls 6.5 but at a lower price 324 dollars per year but if you look at

324 dollars per year but if you look at

324 dollars per year but if you look at these numbers the drop call difference

these numbers the drop call difference

these numbers the drop call difference doesn’t seem very large four and six

doesn’t seem very large four and six

doesn’t seem very large four and six that doesn’t seem very different and

that doesn’t seem very different and

that doesn’t seem very different and that yearly cost of sixty bucks seems

that yearly cost of sixty bucks seems

that yearly cost of sixty bucks seems pretty big so most people in this case

pretty big so most people in this case

pretty big so most people in this case favor B when they have a preference

favor B when they have a preference

favor B when they have a preference they’d rather choose the cheaper plan

they’d rather choose the cheaper plan

they’d rather choose the cheaper plan that’s going to make them suffer more

that’s going to make them suffer more

that’s going to make them suffer more dropped calls but here’s the interesting

dropped calls but here’s the interesting

dropped calls but here’s the interesting thing we gave another group of subject

thing we gave another group of subject

thing we gave another group of subject the different frame but essentially the

the different frame but essentially the

the different frame but essentially the same information in fact identical

same information in fact identical

same information in fact identical information just a rescaling of it we

information just a rescaling of it we

information just a rescaling of it we had them think about dropped calls per

had them think about dropped calls per

had them think about dropped calls per thousand so it’s 42 versus 65 and the

thousand so it’s 42 versus 65 and the

thousand so it’s 42 versus 65 and the price was expressed as per month rather

price was expressed as per month rather

price was expressed as per month rather than per year so 32 versus 27 well

than per year so 32 versus 27 well

than per year so 32 versus 27 well now the price difference looks small

now the price difference looks small

now the price difference looks small it’s only five dollars a month and boy

it’s only five dollars a month and boy

it’s only five dollars a month and boy I’m going to save twenty drop calls over

I’m going to save twenty drop calls over

I’m going to save twenty drop calls over the next thousand that I make and with

the next thousand that I make and with

the next thousand that I make and with this reframing we now have a majority of

this reframing we now have a majority of

this reframing we now have a majority of the people wanting to pay for the more

the people wanting to pay for the more

the people wanting to pay for the more expensive and higher quality plan but

expensive and higher quality plan but

expensive and higher quality plan but the information is identical so the fact

the information is identical so the fact

the information is identical so the fact that we can be moved around based on how

that we can be moved around based on how

that we can be moved around based on how we scale information first of all says a

we scale information first of all says a

we scale information first of all says a lot about our nature we get trapped by

lot about our nature we get trapped by

lot about our nature we get trapped by what we see this is Kahneman’s point but

what we see this is Kahneman’s point but

what we see this is Kahneman’s point but the others we can use this responsibly

the others we can use this responsibly

the others we can use this responsibly by trying to make important things

by trying to make important things

by trying to make important things bigger so we see the actual impact of

bigger so we see the actual impact of

bigger so we see the actual impact of them and so here’s what I mean in the

them and so here’s what I mean in the

them and so here’s what I mean in the sense of energy which is earlier I

sense of energy which is earlier I

sense of energy which is earlier I argued we don’t want to think about

argued we don’t want to think about

argued we don’t want to think about miles per gallon we want to think about

miles per gallon we want to think about

miles per gallon we want to think about gallons per some distance so one

gallons per some distance so one

gallons per some distance so one possible distance is a hundred miles so

possible distance is a hundred miles so

possible distance is a hundred miles so if I think about improving a car from 20

if I think about improving a car from 20

if I think about improving a car from 20 to 25 I know I’m going to reduce my gas

to 25 I know I’m going to reduce my gas

to 25 I know I’m going to reduce my gas consumption from five gallons every

consumption from five gallons every

consumption from five gallons every hundred miles down to four that’s good

hundred miles down to four that’s good

hundred miles down to four that’s good but five to four doesn’t sound that

but five to four doesn’t sound that

but five to four doesn’t sound that impressive to me and I might be fine

impressive to me and I might be fine

impressive to me and I might be fine with the five the car that uses five

with the five the car that uses five

with the five the car that uses five gallons every hundred miles now if you

gallons every hundred miles now if you

gallons every hundred miles now if you tell me over what I hope to be the life

tell me over what I hope to be the life

tell me over what I hope to be the life of my car about a hundred thousand miles

of my car about a hundred thousand miles

of my car about a hundred thousand miles that the difference is going to

that the difference is going to

that the difference is going to be from 5,000 gallons down to 4,000 that

be from 5,000 gallons down to 4,000 that

be from 5,000 gallons down to 4,000 that gets my interest I don’t want to burn

gets my interest I don’t want to burn

gets my interest I don’t want to burn that extra thousand gallons I don’t want

that extra thousand gallons I don’t want

that extra thousand gallons I don’t want to pay for it and I don’t want it to

to pay for it and I don’t want it to

to pay for it and I don’t want it to hurt the environment and now I think I’m

hurt the environment and now I think I’m

hurt the environment and now I think I’m more likely to act on it and so as we

more likely to act on it and so as we

more likely to act on it and so as we think about then improving decisions for

think about then improving decisions for

think about then improving decisions for people what information we can give them

people what information we can give them

people what information we can give them and what you want to look for the next

and what you want to look for the next

and what you want to look for the next time you’re buying a car the EPA label

time you’re buying a car the EPA label

time you’re buying a car the EPA label was redesigned in 2013 to try to offset

was redesigned in 2013 to try to offset

was redesigned in 2013 to try to offset the bad mpg number with other valuable

the bad mpg number with other valuable

the bad mpg number with other valuable information and let me highlight some of

information and let me highlight some of

information and let me highlight some of these for you

these for you

these for you so mpg is still on the label so people

so mpg is still on the label so people

so mpg is still on the label so people want it they expect it but now there’s

want it they expect it but now there’s

want it they expect it but now there’s more stuff so when is this smaller

more stuff so when is this smaller

more stuff so when is this smaller number which is the gallons per hundred

number which is the gallons per hundred

number which is the gallons per hundred miles recommendation that Jack saw and I

miles recommendation that Jack saw and I

miles recommendation that Jack saw and I made in a science article in 2008 so

made in a science article in 2008 so

made in a science article in 2008 so that gets us into consumption and away

that gets us into consumption and away

that gets us into consumption and away from mpg so that’s a step in the right

from mpg so that’s a step in the right

from mpg so that’s a step in the right direction

direction

direction they have annual fuel cost on there

they have annual fuel cost on there

they have annual fuel cost on there that’s also good it’s a translation to

that’s also good it’s a translation to

that’s also good it’s a translation to an objective we care about which is cost

an objective we care about which is cost

an objective we care about which is cost they also have greenhouse gas ratings

they also have greenhouse gas ratings

they also have greenhouse gas ratings this is that signpost of helping people

this is that signpost of helping people

this is that signpost of helping people who want to help the environment get

who want to help the environment get

who want to help the environment get directed in the right direction for it

directed in the right direction for it

directed in the right direction for it and then finally the the last number

and then finally the the last number

and then finally the the last number that I think is quite clever combined

that I think is quite clever combined

that I think is quite clever combined several the principles that I just

several the principles that I just

several the principles that I just proposed which is they make a comparison

proposed which is they make a comparison

proposed which is they make a comparison to an average car so it’s relative and

to an average car so it’s relative and

to an average car so it’s relative and you can see whether you’re saving money

you can see whether you’re saving money

you can see whether you’re saving money or spending extra they scale it over

or spending extra they scale it over

or spending extra they scale it over five years so it’s a bigger number it

five years so it’s a bigger number it

five years so it’s a bigger number it gets closer to the kind of lifetime of

gets closer to the kind of lifetime of

gets closer to the kind of lifetime of the car that you’re going to have and

the car that you’re going to have and

the car that you’re going to have and you can essentially then quickly size up

you can essentially then quickly size up

you can essentially then quickly size up how big an impact you’re having if you

how big an impact you’re having if you

how big an impact you’re having if you buy an SUV that has poor mileage this is

buy an SUV that has poor mileage this is

buy an SUV that has poor mileage this is no longer a savings number this is an

no longer a savings number this is an

no longer a savings number this is an extra cost number that’s getting in the

extra cost number that’s getting in the

extra cost number that’s getting in the thousands of dollars at that point and

thousands of dollars at that point and

thousands of dollars at that point and then finally as as you leave today and

then finally as as you leave today and

then finally as as you leave today and if you’re thinking about buying a car in

if you’re thinking about buying a car in

if you’re thinking about buying a car in the future Duke has put together a

the future Duke has put together a

the future Duke has put together a calculator that allows you to enter mpg

calculator that allows you to enter mpg

calculator that allows you to enter mpg numbers for maybe your current vehicle

numbers for maybe your current vehicle

numbers for maybe your current vehicle and one you might trade for or three

and one you might trade for or three

and one you might trade for or three that you’re considering and you can put

that you’re considering and you can put

that you’re considering and you can put in the mpg some distance you expect to

in the mpg some distance you expect to

in the mpg some distance you expect to drive and I’d recommend pick a big one

drive and I’d recommend pick a big one

drive and I’d recommend pick a big one like the lifetime of the car so you

like the lifetime of the car so you

like the lifetime of the car so you really see the impact of your numbers

really see the impact of your numbers

really see the impact of your numbers make a gasoline price assumption and

make a gasoline price assumption and

make a gasoline price assumption and then you can compare the vehicles to see

then you can compare the vehicles to see

then you can compare the vehicles to see how much you’re saving or how am I

how much you’re saving or how am I

how much you’re saving or how am I you’d spend depending on which one you

you’d spend depending on which one you

you’d spend depending on which one you pick so this is just zooming in you get

pick so this is just zooming in you get

pick so this is just zooming in you get a final number that’s a comparison

a final number that’s a comparison

a final number that’s a comparison between the vehicles whatever you

between the vehicles whatever you

between the vehicles whatever you whatever assumptions you want to make

whatever assumptions you want to make

whatever assumptions you want to make and you can find this easily it’s at a

and you can find this easily it’s at a

and you can find this easily it’s at a URL GPM calculator comm and it will help

URL GPM calculator comm and it will help

URL GPM calculator comm and it will help you when you make your next card

you when you make your next card

you when you make your next card decision so as you walk away then with

decision so as you walk away then with

decision so as you walk away then with this recognition of the problem of what

this recognition of the problem of what

this recognition of the problem of what you see is all there is we can help you

you see is all there is we can help you

you see is all there is we can help you make better decisions by making sure

make better decisions by making sure

make better decisions by making sure when you look at the label or use the

when you look at the label or use the

when you look at the label or use the calculator you’re thinking in terms of

calculator you’re thinking in terms of

calculator you’re thinking in terms of consumption not mpg you’re thinking in

consumption not mpg you’re thinking in

consumption not mpg you’re thinking in terms of the costs and the environmental

terms of the costs and the environmental

terms of the costs and the environmental impact you get a sense of this relative

impact you get a sense of this relative

impact you get a sense of this relative comparison across people or between

comparison across people or between

comparison across people or between vehicles and you think about the big

vehicles and you think about the big

vehicles and you think about the big outcomes over many miles of driving and

outcomes over many miles of driving and

outcomes over many miles of driving and not just 100 miles thank you

not just 100 miles thank you

not just 100 miles thank you [Applause]

”

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