Data Insights

Bite-sized insights on how the world is changing, published every few days.

Economic Growth

Two ways of measuring 160 years of economic growth in the United States

The image presents a grid of line graphs displaying the increase in household access to various amenities in the United States from 1860 to 2020. The title at the top states, "What did economic growth mean for US households?" 

In the top left panel, the data on average income, here measured by GDP per capita, tells us that the average American was 13 times poorer in 1860. 

The purple lines represent a very straightforward approach to measuring growth: each line tracks the share of households that have access to one specific good or service. Starting from the top, you see the rising provision of basic infrastructure like running water, flush toilets, and electric power. You can also see the increasing availability of communication technology from the radio to the TV to the Internet to mobile phones. And further down, you see the increasing availability of technologies that reduced the drudgery of work at home — vacuum cleaners, washing machines, dryers, and dishwashers.

Footnotes at the bottom provide data sources, including research by Horace Dediu, Comin, Hobijn, and GDP data from the Maddison Project Database.

Economic growth is easy to understand: it means that people have access to goods and services of increasing quantity and quality.

What is hard, however, is to measure economic growth. This chart shows two ways of doing this for US growth over the past 160 years.

The purple lines represent a straightforward approach: each line tracks the share of households with access to one specific good or service. Starting from the top, you see the rising provision of basic infrastructure like running water, flush toilets, and electric power. You can also see the increasing availability of communication technology: radios, TVs, the Internet, and mobile phones. And further down, you see the rise of technologies that reduced work at home: vacuum cleaners, washing machines, dryers, and dishwashers.

This approach is very concrete; it shows practical ways in which the production and consumption of specific goods increased over time. The downside is that it only captures a limited number of particular goods. Millions of goods and services are produced and consumed, and most are not recorded with such precision.

A way to measure how people’s access to the full range of goods and services changes is to measure people’s incomes. This way of measuring growth is shown in the top left panel. The data on average income, here measured by GDP per capita, tells us that the average American was 13 times poorer in 1860 than in 2022 (adjusted for inflation).

These two ways of measuring economic growth have pros and cons: one is concrete but not comprehensive, the other is comprehensive but quite abstract. If we want to understand what growth means for our societies, I find it helpful to combine them both.

If you want to know more about this — and see how the inequality of incomes can be factored in — you can read my article: “What is economic growth? And why is it so important?”

Global inequality is the result of two centuries of uneven economic growth

A line graph depicting GDP per capita from 1820 to 2022, with the vertical axis representing GDP in international dollars and the horizontal axis showing the years. Multiple colored lines represent different regions: 

- A purple line for "Western offshoots" (United States, Canada, Australia, and New Zealand), showing the highest GDP per capita, peaking just above $60,000 in 2022.
- A dark blue line for "Western Europe," also showing significant growth and stabilizing around $50,000.
- A light blue line for "East Asia," indicating gradual growth.
- An orange line for "Eastern Europe," displaying a more moderate increase.
- A green line for the "Middle East and North Africa," showing slow growth throughout the years.
- A brown line for the "World" that climbs steadily.
- An olive line for "Latin America," with modest growth.
- A purple line for "South and Southeast Asia," showing the lowest GDP per capita.
- A teal line representing "Sub Saharan Africa," showing minimal gains.

Additional information indicates the data is sourced from Bolt and van Zanden's Maddison Project Database, with a note that it is expressed in international dollars based on 2011 prices. The graph is attributed to "Our World in Data" and is labeled with a Creative Commons license (CC BY).

For most of history, almost everyone everywhere was very poor. Hunger was common, half of the children died, and, as the chart shows, average incomes were low across all regions.

The chart also shows how people’s incomes have changed over the last two centuries. The chart highlights a stark divergence: while average incomes in every region have increased, the pace of this growth has varied enormously. Western Europe and the “Western Offshoots” (like the US and Australia) experienced early and sustained economic growth. Meanwhile, Sub-Saharan Africa and South Asia grew much more slowly.

Two hundred years ago, people in all regions were similarly poor. Today, the average incomes of people in Australia, the US, or Denmark are more than 15 times higher than those in Sub-Saharan Africa.

I wrote an article on how economic growth is possible and why it is important: “What is economic growth?” →

Extreme poverty has not declined in these four Southern African countries

Chart showing that in Zambia, Malawi, Mozambique, and Madagascar, the majority of people live in extreme poverty and poverty has not declined in the last decades.

Globally, the share of the population living in extreme poverty has declined fast, from 38% in 1990 to 9% in 2024.

Some countries, however, have not made any progress against poverty. Four of them are in Southeast Africa, as shown in the chart. In Zambia, Malawi, Mozambique, and Madagascar, most people still live in extreme poverty, and this hasn’t changed in decades.

Poverty has remained high because these economies have not achieved economic growth in recent decades.

In the 1990s, most extremely poor people lived in countries that went on to have strong economic growth. Today, however, a substantial share of the poorest people live in economies that have not grown in decades. Based on current trends, this means that the world cannot expect an end to extreme poverty.

Whether or not the economies that are home to the poorest people in the world start to grow will determine whether the world ends extreme poverty.

I’ve written more about this in “The history of the end of poverty has just begun”, where I explain why economic growth is key to ending poverty →

Since 1960, Singapore's GDP per capita has risen from one-third of that of Western Europe to twice as much

A line graph comparing GDP per capita between Singapore and Western Europe from 1960 to 2022. The vertical axis represents GDP per capita in international dollars, ranging from $0 to $80,300, while the horizontal axis marks the years from 1960 to 2022. 

Singapore's GDP per capita is represented by a blue line that rises sharply over the years, starting at around $3,460 in 1960 and reaching about $80,300 by 2022. The red line represents Western Europe, which shows a steadier increase from approximately $10,900 in 1960 to around $41,300 by 2022.

An annotation indicates that since 1960, Singapore's GDP per capita has grown 23-fold, moving from one-third of Western Europe's level to nearly double. 

Data sources include Bolt and van Zanden from the Maddison Project Database 2023. The note specifies that this data is expressed in international dollars at 2011 prices. The image credit is attributed to Our World in Data, with a CC BY license.

In 1960, Singapore’s GDP per capita — a measure of average income — was a third of the average in Western Europe. It was even lower than Western Europe’s average income in 1900.

Since then, while Western Europe experienced steady growth, Singapore grew even faster. By 1994, it had surpassed Western Europe, and today, its average income is roughly twice as high. This is after adjusting for inflation and differences in living costs between countries.

Singapore became an independent republic in 1965. Key factors in its economic success include anti-corruption policies, investment in education and human capital, and its development as a global financial hub.

Explore how GDP per capita trajectories compare across countries

In these nine African countries, average incomes have more than doubled since 1990

Economic growth is most important for the world's poorest people, and most of the world’s poorest live on the African continent. Are Africa’s economies growing?

The picture is mixed. In some countries, incomes have unfortunately declined in the last decades. This includes Madagascar, Zimbabwe, and Burundi. I have written about this in my brief explainer on extreme poverty.

In today’s Daily Data Insight, I want to focus on the other side: I want to highlight the African countries that are achieving economic growth. Nine of them are shown in the chart above.

In all nine countries, people’s average incomes have more than doubled since 1990.

This made substantial improvements in living standards possible: the share of people in extreme poverty and the rate of child mortality declined in all nine countries.

If you want to know more about the importance of growth and how it can be measured, you could read my article: What is economic growth? And why is it so important?

The world population grew fast over the last 60 years, but farmers grew fruits and vegetables even faster

For almost all of human history, food was scarce for nearly everyone. The reason for this perpetual scarcity was that whenever food production increased, it did not lead to more food per capita but to more people.

Food production did not increase per capita. Population pressure ensured that living standards remained only barely above the subsistence level. Economic historians refer to this mechanism as the Malthusian Trap, and if you’d like to know more, you could read my article about it.

This changed in the last decades. More and more societies around the world broke out of the Malthusian Trap. We see this in the data as increasing food production in per capita terms. The chart shows that farmers have grown many fruits, vegetables, and nuts faster than the world population has increased.

The increase in global agricultural output was crucial for the reduction of hunger and famines that the world achieved in this period. Whether or not we will be able to end hunger globally will depend on whether this increase in food production will continue.

Explore global and country-specific data on a wide range of foods in our Food Data Explorer →

Haiti and Dominican Republic: one island, two diverging economies

A line chart comparing GDP per capita between Haiti and the Dominican Republic from 1990 to 2022, adjusted for inflation and cost of living. The Dominican Republic's GDP per capita (shown in red) starts around $5,000 in 1990 and steadily increases to just under $20,000 by 2022. In contrast, Haiti's GDP per capita (shown in blue) starts just below $2,000 in 1990 and remains relatively flat, slightly decreasing toward 2022. The source of the data is the World Bank (2023), and the chart is from Our World in Data.

Haiti and the Dominican Republic are two Caribbean countries that share the same island, Hispaniola. However, despite sharing the same island, the two nations have developed very differently in recent decades. In 1990, Dominicans had twice the GDP per capita of Haitians. 32 years later, they are seven times richer than Haitians.

The chart shows both trajectories. While the Dominican Republic experienced sustained growth during the three decades, Haiti’s GDP per capita has barely grown and, at times, even slightly decreased. To allow for comparisons, all incomes are shown in international dollars, which account for differences in cost of living across countries.

Today, Haiti is the poorest country in the Americas.

Explore economic growth in your country →

Guyana’s oil-driven economy has had the largest GDP per capita growth in the world in recent years

A line chart from Our World in Data comparing the GDP per capita of Guyana and the world from 1990 to 2022. Guyana’s GDP per capita line shows a sharp increase after 2020, surpassing the global average, which follows a steadier growth trend. The data is sourced from the World Bank and estimates are adjusted for inflation and for differences in the cost of living between countries.

Guyana, a small country in South America, has seen the fastest growth in gross domestic product (GDP) per capita in the world over the past decade.

This is illustrated in the chart, which shows GDP per capita for Guyana and the World, based on estimates from the World Bank.

The data is adjusted for inflation, so Guyana’s sharp growth is not due to price changes over time.

A large and sudden expansion in oil production has driven most of this growth. In 2020, Guyana began extracting oil. From 2020 to 2023, the country’s oil production grew 425%, making it a key contributor to global crude oil supply growth.

Over this period, Guyana’s GDP per capita rose from below the global average to well above it.

Read more about economic development and oil production →

The service sector now represents about half of employment across the world

Stacked area chart showing the rise in employment in the service sector, and the decrease in employment in agriculture

As this data from the International Labour Organization shows, the share of service jobs in all global employment has increased in the last 3 decades, from 34% in 1991 to 51% in 2019.

In this slow but steady change in the world's economy, the share of employment in agriculture has seen an equivalent decrease, from 44% to 27%.

The share of employment in the industry sector has remained stable throughout this period, at 22%.

Explore this data