How Real GDP per Capita Affects the Standard of Living

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  • 0:04 How Well Off is a Nation?
  • 2:53 Calculating the Real…
  • 4:00 Benefits of of a…
  • 4:35 Drivers of Standard of Living
  • 8:35 Lesson Summary
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Lesson Transcript
Instructor: Jon Nash

Jon has taught Economics and Finance and has an MBA in Finance

Have you ever wondered why some countries are better off than others? In this lesson, explore the concept of real GDP per capita, an economic measure of a nation's standard of living, and discover how population, productivity, and the savings rate effect the standard of living.

How Well-off is a Nation?

Go with me as we take an air balloon ride far above the clouds. Air balloons are great for seeing the big picture, and that's what we want to do in macroeconomics. As we look down, we can see the clouds opening up and everything underneath the clouds down below. We're flying over two different countries, and we can see both of them at the same time from this height. On the left side is the land of Macro, where everything is big. Pizzas are 50 slices. Buffets go on for 100 yards. (Why's everything always about food in this course?) Department stores are big - five stories big. Everything is big in Macro. Right next door is the nation of Mini - where everything is small. Cars are small - mini Cooper small. Houses are small. Dinners are even smaller; however, I hear mini golf is pretty big there.

From where we are, we can begin to see something strange. There are some numbers written in the hillsides of both countries. That's right; someone named Bob has mowed the grass on the hillside in the shape of numbers, which happen to be the real GDP of each nation. What a coincidence! This year's real GDP can be seen by those traveling in hot air balloons, helicopters, airplanes and of course, weird aliens with telescopes (otherwise known as 'economists').

Anyway, suppose that in the land of Macro, real GDP is equal to $1.8 trillion. On the other hand, the land of Mini has a real GDP of only $600 billion. The question we want to answer is this: how well off are these two countries? With only this information, you'd probably say that the land of Macro is better off, right? So would I! As you can see, the real GDP is higher in the land of Macro: $1.8 trillion is definitely bigger than $600 billion.

Now, suppose that you take out a pair of super binoculars. As you look more closely, you can see how many people really live in each country. The population in the land of Macro is 1 billion people and the population in the land of Mini is only 8 million people. How well off are the people in the land of Macro compared to the land of Mini?

We can answer this question using what's called the standard of living. Standard of living is an indication of our economic well-being. In other words, it describes the material welfare and the quality of life of the people in a certain country.

Calculating the Real GDP Per Capita

Economists measure standard of living using real output per person or what they call real GDP per capita. Real GDP per capita is the value of national output divided by the population. The formula for real GDP per capita is simply: real GDP / population.

So, now we can see that in the land of Macro, the real GDP per capita = $1.8 trillion / 1 billion people, which is $1,800. In the land of Mini, the real GDP per capita is $600 billion / 8 million people, or $75,000.

So, which nation has the higher real GDP per capita? The land of Mini. In the land of Mini, the average person probably has a nicer house and more material possessions. Economists would say this: the standard of living is higher in the land of Mini.

Benefits of a Higher Standard of Living

When the real GDP per capita goes up, standard of living goes up. Why does it really matter who has more stuff? Because material things are a key element of economic well-being. A country that's able to produce more stuff with fewer resources is usually able to obtain other important things like food, shelter, clean water and freedom. In addition, people who live in countries with higher real GDP per capita tend to be more educated and live longer.

Drivers of Standard of Living

So, let's talk about the drivers of standard of living. In the long-run, a country's standard of living depends on three things:

  • Savings rate
  • Population
  • Productivity

If you're attempting to increase the standard of living of a nation, you'd look at these three things.

When a nation's savings rate increases, this increase in savings ultimately helps raise the standard of living. When people in the land of Macro save 5% of their incomes each year instead of 1%, the extra savings goes into the banking system and gets loaned out to entrepreneurs. The entrepreneurs borrow this money in order to invest into machinery and equipment that increases economic output. And if real GDP grows faster than the population does, then the standard of living goes up. So, the savings rate is an important determinant of a nation's standard of living.

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