It is quite interesting to see that Chinese people are mostly engaged in gold farming. Although this fact became the source of racialization, it is inevitable that China is the main country that farms Gold in World of Warcraft.
First, let's look at the gamer population by country. If the gold farmers want to earn money by selling their game money, there should be enough gamer population. China has the largest gamer population in the world, so Chinese farmers should be able to earn more money than the farmers from other countries, as there will be more demand for game money in China. Second, people would not want to spend time for gold farming if they can earn more money by doing something else. We can see that China has the lowest GDP per capita. Although the GDP per capita of China and Russia is almost the same, the GDP (at purchasing power parity) per capita of China and Russia has much difference. According to IMF, Russia's GDP (PPP) per capita is $24,449 and China's GDP (PPP) per capita is $13,224 in 2014, which means that Russians can buy twice as many goods as Chinese people.
First, let's look at the gamer population by country. If the gold farmers want to earn money by selling their game money, there should be enough gamer population. China has the largest gamer population in the world, so Chinese farmers should be able to earn more money than the farmers from other countries, as there will be more demand for game money in China. Second, people would not want to spend time for gold farming if they can earn more money by doing something else. We can see that China has the lowest GDP per capita. Although the GDP per capita of China and Russia is almost the same, the GDP (at purchasing power parity) per capita of China and Russia has much difference. According to IMF, Russia's GDP (PPP) per capita is $24,449 and China's GDP (PPP) per capita is $13,224 in 2014, which means that Russians can buy twice as many goods as Chinese people.