I was reading an article last week about corruption. I wanted to understand why corruption is rampant in some countries but not in other countries. For example, In South Asia, except Bhutan, all countries have high perceived corruption level. Nepal ranks 126/175 in the 2014 corruption index done by transparency international. Canada is more cleaner than USA. Norway and Denmark are more cleaner than Canada in the Index. Why?

In the article, I also found out that there is a high correlation between ethnic division, GNP per capita, and corruption. The article showed that higher the ethnic division, lower the GNP per capita, and lower GNP per capita is directly associated with higher level of perceived corruption. If this is the case, shouldn't it be good for Nepal to stop this ethnic based division because in the long run, it is shown that ethnic division never solves the problem of corruption. Instead, it fuels corruption.