How to Calculate GDP
Gross domestic product (GDP) is the monetary value of a nation’s output. Output means the value of goods and services produced over a given period both in nominal terms, but also in real or inflation-adjusted terms. GDP does not measure the number of goods and services produced, but the value of those goods and services in dollars or some other currency.
GDP cannot be observed directly. Instead, government statisticians estimate the value of GDP by either calculating what the private and public sectors spent and invested on goods, buildings, and services or what households, businesses, and governments received in income.
What GDP Does Not Measure
U.S. estimates of GDP and national income were first produced in the 1930s and from the start, statisticians warned about misusing the data. The first report on GDP was clear that the “welfare of a nation can…scarcely be inferred from a measurement of national income.” In other words, GDP does not measure a nation’s satisfaction or happiness.
GDP also misses key aspects of an economy. For example, the initial U.S. GDP report pointed out that the national income estimate omitted the contribution by homemakers who were unpaid. The report was also clear that working conditions were not factored into the national income estimate.
Does a Higher GDP Lead to Greater Happiness?
An individual or nation’s well-being is more than the economic value produced. The annual World Happiness Report ranks the happiness level of 156 countries based on survey responses. While per capita GDP contributes to a nation’s happiness and well-being, it is by no means the largest contributor. Happiness is linked more to having a network of friends and family that you can depend on and whether you find something to smile or laugh at each day.
According to the 2019 World Happiness Report, Finland, Denmark, Norway, and Iceland ranked as the happiest. South Sudan, Central African Republic, Afghanistan, and Tanzania were the least happy and also ranked low in per capita GDP.
The takeaway is once a nation reaches a level of GDP where the vast majority of citizens have adequate food and housing, then other factors, such as a robust social network, contribute more to happiness than economic welfare.
Podcast Episode
Money For the Rest of Us Episode 282 explores economic growth, well-being, and happiness.
Topics covered include:
Show Notes
Why You Shouldn’t Believe Those G.D.P. Numbers by David Leonhardt—The New York Times
How the Upper Middle Class Is Really Doing by David Leonhardt—The New York Times
Survey of Consumer Finances—Board of Governors of the Federal Reserve System
U.S. Life Expectancy Falls Further By Betsy McKay—The Wall Street Journal
CDC Finds Rise in Suicide Rates Across the U.S. by Jeanne Whalen—The Wall Street Journal
Satisfaction With the United States—Gallup
Satisfaction With Personal Life—Gallup
Distribution of Personal Income—Bureau of Economic Analysis
Too Much Stuff: Capitalism in Crisis by Kozo Yamamura
The Simple Life: Plain Living and High Thinking in American Culture by David E. Shi
Episode Sponsors
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430: How Should Personal and National Wealth Be Measured?
Transcript
Welcome to Money for the Rest of Us. This is a personal finance show on money, how it works, how to invest it, and how to live without worrying about it. I’m your host David Stein. Today is episode 282. It’s titled, “Is GDP the Best Measure of Happiness and Well-Being?”
Rena, a listener to the show emailed me and sent a column by David Leonhardt of the New York Times. The column was titled, “Why You Shouldn’t Believe Those GDP Numbers.”
He wrote, “Americans are dissatisfied and have been for years, largely because the economy as most people experience it has not been booming. GDP, or Gross Domestic Product, the economy’s total output, keeps on rising, but it no longer tracks the well-being of most Americans. Instead, an outsized share of economic growth flows to the wealthy, and yet GDP is treated as a totemic measure of the country’s prosperity.”
Totemic means representative or symbolic of a particular quality or concept. What is it that GDP is measuring? He defines it. The total output of an economy, what is produced, the dollar value of the goods and services produced over a given period.
Leonhardt is saying that output number, GDP, is no longer tracking the well-being of most Americans. But is that what GDP was put in place to do, track the well-being or maybe more specifically, the economic well-being of a country’s citizens?
Rena asks, “If GDP does not measure a nation’s economic well-being, then what is the proper way to measure it?” We’re going to explore her question in today’s episode.
Unsatisfying indicators
Leonhardt continues in his column, “Consider the true picture: middle-class income growth has been sluggish for decades, the typical household is still poorer than it was before the financial crisis began in 2007, most alarming average life expectancy has recently been declining. No wonder polls show that a majority of American has been dissatisfied with the country’s direction for the past 15 years in a row, a period that encompasses the entirety of the current GDP expansion, the longest on record. So it’s time to stop wondering why Americans are unhappy and instead create a version of GDP that reflects reality, which may finally be on the verge of happening.”
Lagging income growth
Let’s look at the indicators that he mentions. First, “middle-class income growth has been sluggish for decades.” He included a chart in his column that showed from 1947–1980 that GDP per person generally tracked the incomes of the bottom 90%, this would be after-tax income including government benefits, adjusted for inflation, because the GDP number is the real GDP, and they tended to track a very similar line.
But since 1980 they’ve diverged. GDP per person, per capita, has grown faster than the incomes of the bottom 90%. Leonhardt also linked to another article that had a similar graph, but in this one, it was just since 1980, it showed how the top 1% of income, after-tax, had grown faster than real-per capita GDP, again all these income numbers are net of inflation, and that the middle 40% has lagged and the bottom 50% has also lagged.
So yes, income, for most individuals is not growing as fast as the rate of increase in the dollar value of output. Does that make us unhappy? Should it make us unhappy?
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