How public policy shapes demographic trends

Mapping how human population has grown throughout history

It took 200,000 years for our human population to reach 1 billion—and only 200 years to reach 7 billion. When will our global population peak? And how can we minimize our impact on Earth’s resources, even as we approach 11 billion?

A podcast on America’s coming demographic crisis

This podcast explores how America’s coming demographic crisis is bad for employers. According to Bloomberg, businesses still need humans to make the economy work. However, too few workers in the US are actually working, and too few people are...

Four global trends in shifting demographics

This UN summary outlines four global trends in shifting demographics. The world’s population is expected to peak by the end of the century as fertility rates continue to decline. Between now and 2050, the global population is projected to become...

What happens when the population grows faster than the food supply?

Human history is shaped by our ability to feed ourselves. See how population growth is tied to farmland, and how food production’s profound environmental effect shows us the need for change.

See how populations across the world could change in the 21st century

This tool lets you model the populations of individual countries by adjusting key demographic inputs. See how changes in birth rates, mortality, and migration affect the size and structure of future populations.

Early farming created population booms—and also major busts

Europe’s ancient embrace of farming took the continent on a demographic roller-coaster ride. Regional booms and busts in human numbers occurred between 8,000 and 4,000 years ago, a new study finds.

A video introduction to demography

The Big Think’s video provides a thorough introduction to the field of demography. Demography provides the tools to address and understand many of the world’s problems. It uses quantitative data and mathematical models to analyze populations....

Striking demographic trends from 2022

This article lists the 15 most striking research findings by Pew Research Center in 2022. The topics highlighted represent a sample of the Center’s research, compiled through surveys. Findings examine public opinion around the biggest news events...

France once had a reproduction czar to help midwives deliver babies

Much ado is made about falling marriage and birth rates worldwide, and how they might affect tax bases, retirement funds, and social standing. But this isn’t the first time marriage, and subsequently reproduction, have fallen out of favor. Some countries have resorted to drastic measures to restore the tarnished state of these hallowed institutions.

Health and population surveys from 90 countries

The Demographic and Health Surveys (DHS) Program collects, analyzes, and disseminates data on population, health, HIV, and nutrition. The site compiles data through more than 400 surveys in over 90 countries around the world. Explore demographic...

‘Tulip mania’ may have been the first financial bubble. It still shapes markets today

This podcast revisits tulip mania, the 1630s Dutch craze where rare bulbs were briefly traded like luxury assets. It unpacks the myths surrounding the event and shows how its legend continues to shape modern perceptions of financial bubbles.

Tax policy can have a direct impact on the national debt

Past presidents' changes to tax codes have inflated the deficit. An expert on the topic explains the interplay between policy and the national budget while debunking 10 tax-related myths in this podcast.

Track the changes in US immigration law throughout history

This interactive timeline tracks the development of US immigration law, overlaid with time-series data on percentages of the foreign-born population. Explore how each major policy development correlated with immigration levels, revealing the relationship between legislation and demographic change.

An economist answers questions about love

Economists aren't exactly known for their dating advice. But as it turns out, economics experts can offer fresh perspectives to everyday romantic quandaries. On this podcast episode, economist Tim Harford answers listeners’ relationship quandaries, from paying for a first date to alternatives to saying, "I love you." Listen to the episode here.

Assessing the effectiveness of peacekeeping forces

This podcast episode of Diplomatic Immunity from Georgetown’s Institute for the Study of Diplomacy explores the evolution of UN peacekeeping over its 70-year history. The podcast is joined by Dr. Lise Howard to examine the origins, challenges, and shifting role of peacekeepers—those “blue helmets” deployed where few others will go—in a broader conversation about multilateralism and global conflict response.

The history of the World Trade Organization

This episode of the "Brettonomics with Nancy Jackson" podcast explores the history of the WTO and its predecessor, the GATT, revealing the key people, negotiations, and decisions that shaped today's international trade rules.

How K-pop conquered the world

How did Korean musical acts go from unpopular and at times maligned to filling arenas and creating one of the most viral music videos of all time? This 25-minute audio documentary from BBC World Service explains how social networks, plastic surgery, and government tax breaks helped turn K-pop into the multibillion-dollar global juggernaut we know today.

Economists warn that private schools can negatively affect public schools

Lower public school enrollment often means less public school funding. Private school parents, however, frequently argue that public schools simply aren’t offering the right education for their children. This podcast episode investigates that back-and-forth in San Francisco, where 30% of children attend private schools, nearly three times the national figure.

Why some nations reach economic success and others don’t

The 2024 Nobel Prize in Economics winners, Daron Acemoglu, Simon Johnson, and James A. Robinson, were honored for their compelling research on the factors that influence a nation’s prosperity. Spanning two decades, their work presents insights into how societal organization can explain the income discrepancies between different countries. In general, their research shows that economic success favors more free and open societies. Listen for more fascinating insights.

How did China go from an empire to a republic?

In the 1800s, as China's economy was in flux, foreign imperialist powers began appearing on the horizon, leading China to lose land and influence in the region. This 48-minute podcast episode explores how this destabilization set the stage for the...

The world reached historic levels of democracy under the rules-based order, though that trend has reversed

The share of democracies worldwide grew dramatically from the mid-20th century, reaching an all-time high in the early 2010s. Since then, the trend has reversed, with an increasing number of countries experiencing democratic backsliding.

Hear Ray Dalio talk about the growth of the Chinese economy

Dalio was an early advocate of US investment in China. While he has previously criticized the authoritarian regime, his criticism of the government has been labeled mild relative to his praise for economic growth and innovation—critics argue that he has minimized human rights violations in the country.

The IMF was created to prevent the currency crises that destabilized the 1930s global economy

Founded in 1945, the IMF monitors exchange rates, promotes financial stability, and provides emergency funding to countries that cannot pay for their imports. It currently has 191 member countries and acts as a lender of last resort for struggling economies.

Inflation explained in under 3 minutes

Keep seeing inflation in the news, but don't have a great grasp on what it means or how it works? This overview from 1440 breaks down how economists think about inflation, what it means for the average consumer, and how governments attempt to keep rising prices in check through various policies.

Housing prices have skyrocketed over the last 50 years

After adjusting for inflation, housing costs have more than doubled since 1965. And based on average incomes, buyers are spending more than five times their income for a home versus buyers in 1965, who typically spent less than three times their income.

A century of Billboard issues documenting the evolution of popular music.

Roughly 43 million US borrowers owe roughly $1.7T in student debt, the second-largest source of consumer debt behind mortgages.

Coral polyps reproduce via broadcast spawning, where entire reefs simultaneously release reproductive cells for about one hour, once a year.

After NASA's Voyager 1 captured Earth as a single pixel as it left the solar system in 1990, astronomer Carl Sagan used the image to reflect on humanity's fragility and the responsibility to protect 'the only world we've ever known.'

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

The first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

Listen to an in-depth conversation on the links between Parkinson's disease and herbicide exposure and the challenging pace of scientific investigation.

Watch how viruses like Ebola can spill over from animals to humans—and vice-versa.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.

Fireworks-related ER visits are on the rise—in 2024, they increased by 52% as compared to the prior year.

Massive 3D printers have been used to build homes by stacking layers of 'concrete toothpaste,' a fire-resistant material that effectively insulates against outside noise.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

Chaos theory—informally known as the butterfly effect—is the reason why weather forecasts are presented with probabilities rather than certainties.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

How fusion—which releases energy when two lighter atoms combine to form a heavier atom—differs from fission

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time