[moogleii]

> My acquaintance dug into some 400 years of Japanese history to explain why it had less problems with corruption than China, next door.

That's a bit suspect considering a lot of pre-WW2 Japanese governments were based off Chinese models (not to mention, as another commenter mentioned, there are other examples of Asian governments with low corruption, maybe even less than Japan's). In China's case, if we're going back hundreds of years, I suspect the explanation is a bit more complex, you know, having to deal with all that sheer area in the age of horses, no natural sea barrier against foreigners, not to mention a population size that easily dwarfed Japan's (and most countries in the world).