Basic Facts of Growth and Development: Why Do Rich and Poor Countries Differ?

TL;DR

Rich and poor countries differ mainly because some countries began sustained economic growth earlier than others. The United States grew about 2% per year for roughly 200 years, while its GDP per capita of about $47,000 was more than a hundred times that of the poorest countries. Read on to understand PPP comparisons, historical divergence, and signs that China and India may be catching up.

Transcript

Hi. Today, we're going to begin with some of the basic facts about growth and development. The most basic fact of all is that there are rich countries and there are poor countries, and the differences between them are extreme. So, the United States, it's not the world's richest economy in terms of GDP per capita, but it's the world's richest lar... Read More

Key Insights

• GDP per capita varies drastically between rich and poor countries, with the richest large economy, the United States, having a GDP per capita around $47,000.
• Purchasing power parity (PPP) adjustments are used to make GDP comparisons more accurate across countries, though they are not perfect.
• Most of the world's poorest countries are located in Africa, with GDP per capita more than a hundred times lower than in the United States.
• The United States has experienced a consistent growth rate of about 2% per year for over 200 years, contributing to its wealth.
• Growth miracles, such as those in Japan and South Korea, demonstrate that countries can catch up to richer nations with the right institutions and policies.
• Growth disasters, like those in Nigeria and Argentina, show that without proper policies, countries can stagnate or even decline economically.
• Higher GDP per capita correlates with longer life expectancy, more leisure, and greater rights, including democracy and women's rights.
• Life expectancy has increased globally due to factors like vaccines, even in poorer countries with stagnant GDP per capita growth.
• "The most basic fact of all is that there are rich countries and there are poor countries, and the differences between them are extreme." (0:06)
• "So, the differences in GDP per capita are extreme." (0:52)
• "But the very poorest countries tend to cluster in Africa." (1:39)
• "Well, the most basic reason is that the United States has grown consistently for a very long period of time." (1:48)
• "This is where we get the big differences in wealth." (6:02)

Questions & Answers

Q: Why do rich and poor countries differ so much?

The most basic reason is that countries began sustained economic growth at different times. The United States followed a long growth path before many other countries, creating large differences in GDP per capita.

Q: How large is the GDP per capita gap between the United States and the poorest countries?

United States GDP per capita is about $47,000 per year. In the poorest ten countries, it is a little more than a hundred times lower than in the United States.

Q: What are PPP-adjusted GDP figures?

PPP-adjusted figures attempt to correct GDP per capita for differences in prices across countries. The adjustment is not always perfect, but it makes the figures as comparable as possible.

Q: Where are most of the world's poorest countries located?

Most, though not all, of the poorest countries are in Africa. Congo and Burundi compete for the bottom spot, while Timor-Leste is an example of a poor country outside Africa.

Q: Why is the United States much richer than many other countries?

The United States has grown consistently for a very long time. Its growth rate has been about 2% per year for roughly 200 years, with exceptions such as the Great Depression.

Q: What does the rule of 70 reveal about United States economic growth?

United States real GDP per capita rose from about $2,000 around 1840 to 1845 to $4,000 by 1880. That doubling time of 35 years implies growth of about 2% per year under the rule of 70.

Q: When did large international differences in wealth emerge?

GDP per capita differed relatively little across world regions in the years 1, 1000, and even 1500. Divergence began around the Industrial Revolution and intensified as countries such as the United States entered sustained growth paths.

Q: Are poorer countries beginning to catch up with richer countries?

China, India, and some other Asian countries may have begun catching up during the last few decades covered in the discussion. The transcript suggests that large wealth differences arose because countries entered the growth path at different times, not because those gaps must always persist.

Summary & Key Takeaways

• Economic disparities between countries are largely due to historical growth trajectories, with the United States and Western Europe starting earlier on sustained growth paths. This has resulted in significant differences in GDP per capita, with the poorest countries often located in Africa. However, countries like China and India are beginning to catch up economically.

• Growth miracles, such as those in post-war Japan and South Korea, highlight the potential for rapid economic development under favorable conditions. Conversely, growth disasters in countries like Nigeria and Argentina demonstrate the consequences of inadequate policies, leading to stagnation or decline.

• GDP per capita is positively correlated with life expectancy, leisure, and democratic rights. Even in poorer countries, life expectancy has increased due to global advancements in healthcare, such as vaccines. This underscores the broader benefits of economic growth beyond mere wealth accumulation.