because they are much richer than LEDC's
Yes, Japan like all other countries will have radioactivity. But not as much as say Chernobyl, or even Bikini Atoll.
because there's not that much violence and crime compared to other countries
green ones much like in other countries really
In Antiquity, seafaring nations were much richer than landlocked countries.
Japan is a string of islands with small land mass. They could not find areas to put land for food much less people so they buy from other countries, this also explains why prices in Japan are so overpriced.
China and Russia are two larger countries close to Japan.
Thailand was much bigger, and worse. It caused more damage. Indonesia needed more help to repair everything after the tsunami, as Japan was richer, and Japan didn't want any help.
Not as much as one in Japan, USA, Canada or a lot of other countries however they make a lot more than dentists from Afghanistan, Sudan, Haiti and a lot of other countries. Your welcome for me waisting your time
The countries with oil reserves are much richer than those countries that have not found oil in their territory.
China is a large country. You could divide it into two parts, the east and the west. The east is surrounded by ocean and other relatively wealthy countries. The west is surrounded by mountains and relatively poorer countries. Therefore trade is most likely to happen in the east coast. In-order for a place to be "rich", there has to be a large amount of interaction with other economies. Therefore the east side of China is much richer,
Japan is not really hated all that much. Some people do still bear a grudge about WW II, at which time Japan attacked and invaded many other countries in Asia, and was very cruel and destructive. But that ended in 1945, a long time ago.