#coronavirus #Covid-19 #10coronaviruse Top 10 corona most cases countries in the world 2020.
This video shows the Top 10 countries with highest GDP PPP from 1800 to 2040 based on 2011 international dollars. It gives a brief history of the world since the 1800s. China and India were ahead before the 1900s while the USA started leading after the 20th century.
Purchasing power parity (PPP) is a neoclassical economic theory that states that the exchange rate between two countries is equal to the ratio of the currencies' respective purchasing power.
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