GDP per capita is a country's gross domestic product divided by its population, giving output per person. On the AP Macro exam, growth in real GDP per capita is the official measure of economic growth, and it approximately equals the real GDP growth rate minus the population growth rate.
GDP per capita takes a country's total output (GDP) and divides it by the number of people living there. The result is output per person, which is the standard way economists compare average living standards across countries or over time. A country with a huge GDP but an even bigger population can still have a low GDP per capita, which is why "biggest economy" and "richest citizens" are not the same thing.
In AP Macro, the version that matters most is real GDP per capita, because using real GDP strips out inflation so you're comparing actual stuff produced, not just higher prices. The CED defines economic growth as the growth rate in real GDP per capita over time (Topic 5.6). The shortcut you'll use constantly is that the growth rate of real GDP per capita is approximately the growth rate of real GDP minus the growth rate of population. So if real GDP grows 4% and population grows 1%, real GDP per capita grows about 3%.
GDP per capita shows up in two different units, doing two different jobs. In Unit 2 (Topic 2.2, learning objective 2.2.A), it appears in the discussion of GDP's limitations. Even GDP per capita, the "per person" fix, can't tell you how income is actually distributed, and it still misses nonmarket transactions like volunteer work and household production (EK MEA-1.B.1). In Unit 5 (Topic 5.6, learning objective 5.6.A), it becomes the star of the show. Economic growth is defined as growth in real GDP per capita, and the determinants of that growth (physical capital, human capital, technology) all work through the aggregate production function. If you can calculate it, interpret it, and name its blind spots, you've covered both units' angles.
Keep studying AP Macroeconomics Unit 5
Gross Domestic Product (GDP) (Unit 2)
GDP per capita is just GDP with a population adjustment, but that adjustment changes the question being answered. GDP measures the size of the whole economy; GDP per capita measures how much output exists per person, which is what you want when comparing living standards.
Standard of Living (Units 2 & 5)
Real GDP per capita is the exam's go-to proxy for standard of living. Higher output per person generally means more goods and services available per person. Just remember it's an average, so it can hide big gaps between rich and poor.
Aggregate Production Function (Unit 5)
The aggregate production function explains WHY GDP per capita rises. Output per capita is positively related to physical and human capital per worker and the level of technology. More tools, more skills, better tech equals more output per person.
Income Inequality (Unit 2)
Two countries can have identical GDP per capita with totally different income distributions. That's a classic limitation-of-GDP point. Dividing by population gives you an average, and averages say nothing about who actually gets the income.
Expect calculation questions and limitation questions. On the calculation side, multiple-choice stems give you a real GDP growth rate and a population growth rate and ask for the growth rate of real GDP per capita (4% GDP growth minus 1% population growth is about 3% per capita growth). The 2024 FRQ Q2 built on this exact skill set, giving a data table for the country of Louland with a GDP deflator and asking you to work with real values, so be ready to convert nominal to real before doing any per-capita reasoning. On the limitations side, questions describe two countries with identical GDP per capita but different income distributions or different amounts of volunteer work, then ask which limitation of GDP the scenario shows. The move in both cases is the same. Treat GDP per capita as a useful average, compute with it cleanly, and know exactly what it leaves out.
Total GDP measures the overall size of an economy; GDP per capita measures average output per person. China has a much larger total GDP than Norway, but Norway has a much higher GDP per capita. On the exam, economic growth is defined using real GDP per capita, not total GDP, because an economy can produce more in total while each person ends up with less if population grows faster than output.
GDP per capita equals total GDP divided by population, giving you output per person rather than the size of the whole economy.
The AP Macro definition of economic growth is the growth rate of real GDP per capita over time, not the growth rate of total GDP.
The growth rate of real GDP per capita is approximately the real GDP growth rate minus the population growth rate, so 4% GDP growth with 1% population growth means roughly 3% per capita growth.
GDP per capita is an average, so it cannot show income distribution; two countries can have identical GDP per capita with very different levels of inequality.
Like GDP itself, GDP per capita ignores nonmarket transactions such as volunteer work and household production, which is a stated limitation of GDP in the CED.
Real GDP per capita rises when physical capital per worker, human capital per worker, or technology improves, which is the logic of the aggregate production function.
It's a country's GDP divided by its population, measuring output per person. AP Macro uses real GDP per capita as the proxy for living standards and defines economic growth as its growth rate over time (Topic 5.6).
Subtract the population growth rate from the real GDP growth rate. If real GDP grows 3% and population grows 1%, real GDP per capita grows approximately 2%.
No. GDP per capita is an average, so it says nothing about distribution. Two countries can have identical GDP per capita while one has far worse income inequality, which is exactly the limitation-of-GDP scenario the exam likes to test.
GDP measures total output of the whole economy; GDP per capita divides that by population to get output per person. A country can have an enormous total GDP but a modest GDP per capita if its population is huge, so per capita is the better tool for comparing living standards.
Nominal GDP can rise just because prices rose. Using real GDP (adjusted with a price index like the GDP deflator) means an increase in real GDP per capita reflects actual additional output per person, not inflation.