List of Countries by Projected GDP

In 2019, United States and China would remain the largest economy in nominal and PPP, respectively. Tuvalu would be the world's smallest economy in both methods. In exchange rates methods, Largest economy United States represents a quarter share of the global economy, while smallest economy Tuvalu contributes only 0.00005 percent. In PPP, 1st ranked China shares 19.3 percent and lowest ranked Tuvalu shares 0.00003 percent.

In nominal data, 16 economies would have gdp above $1 trillion and 62 would have above $100 billion. Top two economies, US and China would accounts for over 40% of global wealth. 50% of world gdp are within top four economies. Top 10 economies representing just over a two-third (67.61%) and top 20 economies add up to over 80%. 93 smallest economies together constitute only 1 % and 157 lowest ranked constitute only 10 % of total.

In ppp data, 28 economies, 12 more than nominal, would have gdp above $1 trillion. 87 economies would have gdp greater than $100 billion. Top 5 economies share almost half of the world's economy, top 10 economies contribute 62%, and the top 20 economies add up to over 75%. 83 smallest economies only share 1 % in global wealth and 151 lowest ranked share only 10 % of total.

There are much differences in rankings of economies between these two basis. Sudan is highest gainer in ppp rank compare to its nominal rank. Rank of Sudan is up by 26 place from 101th in nominal to 75th in ppp. Next in line comes Myanmar (+24), Egypt (+23), Madagascar (+21) and Uzbekistan (+20). Iceland is biggest looser in ppp ranking, down by 36 rank from 111th in nominal to 147th in ppp. Iceland is followed by Luxembourg (-31), Israel (-21). 13 economies has same rank in both methods.