Our Insights blog presents deep data-driven analysis and visual content on important global issues from the expert data team at Knoema.了解更多
Quick data summaries and visualizations on trending industry, political, and socioeconomic topics from Knoema’s database.United States: Higher Education Costs Flat in 2018 E-Commerce Prompting Innovation by Traditional Postal Services The Global Opportunity Index 2018 了解更多
GDP per capita (PPP based) is gross domestic product converted to international dollars using purchasing power parity rates and divided by total population. An international dollar has the same purchasing power over GDP as a U.S. dollar has in the United States. A purchasing power parity (PPP) between two countries, A and B, is the ratio of the number of units of country A’s currency needed to purchase in country A the same quantity of a specific good or service as one unit of country B’s currency will purchase in country B. PPPs can be expressed in the currency of either of the countries. In practice, they are usually computed among large numbers of countries and expressed in terms of a single currency, with the U.S. dollar (US$) most commonly used as the base or “numeraire” currency.