Limitations of GDP발음듣기
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Limitations of GDP
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Limitations of GDP
[Instructor] In other videos we have already talked about the idea of GDP in some depth.
Gross domestic product a measure of the aggregate goods and services produced in a country in a year.
But what we're going to discuss in this video is how good a measure GDP is and in particular some of the things that GDP does not measure.
So in general what's the motivation for wanting to know the aggregate goods and services produced by a country?
Well you could view it as a sign of economic activity so it's economic activity.
You could view it as the size or influence of an economy.
Size/influence of economy.
And then if you take GDP and you divide by the number of people in a country you get things like GDP per capita.
GDP per capita what you could view really as GDP per head.
And this you could view as well that's an indicator of well-being with the idea that well if there's just more goods and services produced per person that maybe people in that country are going to be better off.
But as we already touched on what is it not measuring?
Well one thing that GDP does not measure is non-marketed goods.
What do I mean by non-marketed goods?
So let's say that I have to go to the airport so this is the airport here, my best drawing.
That's a terminal, there's a plane.
That's the point of this isn't to draw an airport but you get the idea, that's an airport.
And I need to go from my house to the airport.
If I call up a taxi or an Uber or Lyft or something like that and I take it to the airport so they drive me to that airport that fare that they charge me that will be included in GDP.
On the other hand if I were to get my wife to drive me to the airport all of a sudden that would not be counted in GDP even though the exact same service has been performed.
Someone took me in their car from my house to the airport.
And that's because my wife or your roommate or your best friend giving you a ride is a non-marketed service.
They're not trying to sell that service.
They're just doing that to you as a favor.
But it was a service provided to you but it would not be captured in GDP.
One that is often talked about is child care.
If, that's my best drawing of a child really fast if you hire a babysitter or if you hire a nanny to take care of your child that should be included in GDP.
Although if you yourself take care of your child that will not be included in GDP because once again you taking care of your child would be a non-marketed service.
Now the other thing that GDP does not include are illegal activity or you could even say under the table activity, some of which is not illegal.
For example if someone were to pay their babysitter and if it doesn't get registered in taxes someplace well even that will not be reflected in the GDP number.
It's not an illegal activity but it should've officially been registered with the IRS and then it would've been counted as GDP but in this case, it wouldn't have.
And also of course you have black markets illegal activity that for sure would not be included in GDP.
If someone were to illegally sell you fireworks, let's say they're banned in your state and of course they're not gonna report it to the government.
Well of course that good and/or service is not going to be reflected in GDP.
But you might say okay that's all right you're gonna miss some things but directionally if GDP is growing especially if GDP per capita is growing surely that is a good thing.
And in general you're probably right.
It probably is a good thing but there's also things that GDP is not capturing.
It is not capturing even if you were able to measure non-marketed goods and services or under the table or illegal activity it doesn't capture things like let's say pollution.
You could have a country whose GDP is growing very fast but in the process the country gets very polluted.
Maybe that makes the quality of life go down in certain areas.
Health is another issue.
In general countries with a high GDP per capita usually do have good health care mainly because they have more resources for health care.
But you wanna look at that.
How is the health trending in a country?
And then you could even think about stuff like stress or a feeling of community or support.
These are all things that would affect any human being's well-being but they are not of course captured in GDP.
Now to appreciate the different ways of ranking countries in an attempt to get at well-being you could first of all look at GDP rankings.
So here are rankings by the World Bank for 2016.
You can see the United States is on top with 18.6 almost trillion dollars of GDP as measured by the World Bank and you see the ranking.
Now if you wanted to go by per capita because you say hey this doesn't tell you how many people are there.
What matters is how much productivity divided by the number of people if you really wanna measure per person well-being.
Well then you might look at something like this GDP per capita.
And notice here, the United States is still quite high but it's nowhere near as high as Luxembourg.
The reason why Luxembourg didn't show up on the other list is it is a very small country.
It's population is very small compared to the United States.
Same thing for Switzerland or for Macau.
Now another thing to appreciate is this GDP per capita just takes the nominal GDP and divides it by the number of people there are in a country.
But it does not measure or indicate things like wealth inequality.
It's not that every person in Luxembourg gets exactly $103,000 worth of goods and services.
Depending on the country there might be more of a middle class or less of a middle class.
There might be more wealth inequality or less wealth inequality and once again that is not captured by GDP.
Also even the GDP per capita doesn't really tell you how much you can buy with that per capita GDP.
And so that's why people look at things like purchasing power parity.
This is a sense of per capita GDP but adjusted for how much you could buy with those resources that are measured in U.S. dollars.
So now all of a sudden, Qatar at the top.
Qatar was pretty high but I guess you can buy more and get more goods and services with that nominal GDP per capita as measured in U.S. dollars in Qatar than you could say in the United States.
So I will leave you there.
There's no such thing as an absolutely perfect measure of economic activity, much less well-being but GDP is the best measure that we have although I encourage you to think of others.
For example, the UN has tried to measure happiness.
They have this ranking of happiness.
They have an annual World Happiness Report.
And I'm not gonna go into all of the details but beyond GDP it also considers things like health or other measures of well-being.
And as you can see the countries at the top here tend to have fairly high GDPs but this ranking is not the same as the ranking that we saw on the GDP per capita with the purchase power parity.
And so these are all very interesting things to think about.
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Gross domestic product a measure of the aggregate goods and services produced in a country in a year.발음듣기
대기중
But what we're going to discuss in this video is how good a measure GDP is and in particular some of the things that GDP does not measure.발음듣기
대기중
So in general what's the motivation for wanting to know the aggregate goods and services produced by a country?발음듣기
대기중
And then if you take GDP and you divide by the number of people in a country you get things like GDP per capita.발음듣기
대기중
And this you could view as well that's an indicator of well-being with the idea that well if there's just more goods and services produced per person that maybe people in that country are going to be better off.발음듣기
대기중
If I call up a taxi or an Uber or Lyft or something like that and I take it to the airport so they drive me to that airport that fare that they charge me that will be included in GDP.발음듣기
대기중
On the other hand if I were to get my wife to drive me to the airport all of a sudden that would not be counted in GDP even though the exact same service has been performed.발음듣기
대기중
And that's because my wife or your roommate or your best friend giving you a ride is a non-marketed service.발음듣기
대기중
If, that's my best drawing of a child really fast if you hire a babysitter or if you hire a nanny to take care of your child that should be included in GDP.발음듣기
대기중
Although if you yourself take care of your child that will not be included in GDP because once again you taking care of your child would be a non-marketed service.발음듣기
대기중
Now the other thing that GDP does not include are illegal activity or you could even say under the table activity, some of which is not illegal.발음듣기
대기중
For example if someone were to pay their babysitter and if it doesn't get registered in taxes someplace well even that will not be reflected in the GDP number.발음듣기
대기중
It's not an illegal activity but it should've officially been registered with the IRS and then it would've been counted as GDP but in this case, it wouldn't have.발음듣기
대기중
And also of course you have black markets illegal activity that for sure would not be included in GDP.발음듣기
대기중
If someone were to illegally sell you fireworks, let's say they're banned in your state and of course they're not gonna report it to the government.발음듣기
대기중
But you might say okay that's all right you're gonna miss some things but directionally if GDP is growing especially if GDP per capita is growing surely that is a good thing.발음듣기
대기중
It is not capturing even if you were able to measure non-marketed goods and services or under the table or illegal activity it doesn't capture things like let's say pollution.발음듣기
대기중
You could have a country whose GDP is growing very fast but in the process the country gets very polluted.발음듣기
대기중
In general countries with a high GDP per capita usually do have good health care mainly because they have more resources for health care.발음듣기
대기중
These are all things that would affect any human being's well-being but they are not of course captured in GDP.발음듣기
대기중
Now to appreciate the different ways of ranking countries in an attempt to get at well-being you could first of all look at GDP rankings.발음듣기
대기중
You can see the United States is on top with 18.6 almost trillion dollars of GDP as measured by the World Bank and you see the ranking.발음듣기
대기중
Now if you wanted to go by per capita because you say hey this doesn't tell you how many people are there.발음듣기
대기중
What matters is how much productivity divided by the number of people if you really wanna measure per person well-being.발음듣기
대기중
And notice here, the United States is still quite high but it's nowhere near as high as Luxembourg.발음듣기
대기중
Now another thing to appreciate is this GDP per capita just takes the nominal GDP and divides it by the number of people there are in a country.발음듣기
대기중
There might be more wealth inequality or less wealth inequality and once again that is not captured by GDP.발음듣기
대기중
Also even the GDP per capita doesn't really tell you how much you can buy with that per capita GDP.발음듣기
대기중
This is a sense of per capita GDP but adjusted for how much you could buy with those resources that are measured in U.S. dollars.발음듣기
대기중
Qatar was pretty high but I guess you can buy more and get more goods and services with that nominal GDP per capita as measured in U.S. dollars in Qatar than you could say in the United States.발음듣기
대기중
There's no such thing as an absolutely perfect measure of economic activity, much less well-being but GDP is the best measure that we have although I encourage you to think of others.발음듣기
대기중
And I'm not gonna go into all of the details but beyond GDP it also considers things like health or other measures of well-being.발음듣기
대기중
And as you can see the countries at the top here tend to have fairly high GDPs but this ranking is not the same as the ranking that we saw on the GDP per capita with the purchase power parity.발음듣기
대기중
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