Terrorism affects some countries much more than others
Explore key insights, 4 articles, and 25 charts on terrorism and how it has changed over time.
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The Global Terrorism Database: how do researchers measure terrorism?
There are different approaches to measuring terrorism. Here is the approach of the Global Terrorism Database, a leading source of terrorism data.How do researchers estimate the death toll caused by each risk factor, whether it’s smoking, obesity, or air pollution?
Risk factors are important to understand because they can help us identify how to save lives. How do researchers estimate their impact?How are causes of death registered around the world?
In many countries, when people die, the cause of their death is officially registered in their country’s national system. How is this determined?Risk ratios, odds ratios, risk differences: How do researchers calculate the risk from a risk factor?
The effects of risk factors can be calculated in different ways. How are they calculated and interpreted?Why isn’t it possible to sum up the death toll from different risk factors?
Deaths caused by each risk factor can’t be added up. By understanding why, we will have a better understanding of how many lives can be saved with each intervention.We just published a new topic page on food prices
Explore global data on food affordability, and expenditures on food across the world.The limits of our personal experience and the value of statistics
The world is huge; to get a clear idea of what our world is like, we have to rely on carefully collected, well documented statistics.We published a new topic page on tourism
Explore data on how tourism has changed over time, and how it differs across the world.We published a new topic page on homicides
Explore data on homicides rates across the world, and how these have changed over time.We launched our new Sustainable Development Goals Tracker
With our SDG Tracker you can track global and country-by-country progress toward the United Nations Sustainable Development Goals (SDGs).We published a new topic page on economic growth
Explore global data on the history of economic growth, and differences across the world today.The world has passed “peak child”
Explore global and country data on population growth, demography, and how this is changing.How are incomes adjusted for inflation?
Adjusting incomes for inflation is crucial if we want to learn how standards of living are changing. How is this adjustment done?We published a new topic page on economic inequality
Explore global data on economic inequality, and how this is changing over time.How has income inequality within countries evolved over the past century?
While the steep rise of inequality in the United States is well-known, long-run data on the incomes of the richest shows countries have followed a variety of trajectories.OWID Data Collection: Inequality and Poverty
Explore a wide range of indicators on inequality and poverty and compare sources.We published a new topic page on Human Rights
Explore data on human rights across the world, and see how these rights have changed over time.We published a new topic page on Diarrheal Diseases
Diarrheal diseases are a leading cause of death, especially among children. Explore global data on deaths and treatment for this killer.Income inequality before and after taxes: how much do countries redistribute income?
The redistribution of income achieved by governments through taxes and benefits varies hugely.Measuring inequality: what is the Gini coefficient?
The Gini coefficient is the most common way of measuring inequality. But what does it actually measure? And how does it differ from other measures of inequality?