Prime Minister Koizumi will resign his position in this September. His administration has been about five years. He was not a strong candidate at first, but he was selected by election of Liberal Democratic Party (LDP).
Many people thought that his administration would be short, but the prospect was missed. What's the reason? At that time Japanese society needed change, because Japanese economy was bad, and people wanted the new social scheme.
Until that time the so-called iron triangle had governed Japan, and the way was successful after the end of the Second World War. The iron triangle are cooperation of the political world, the business world and the official world.
This system has come to a deadlock. Why? Maybe there are many reasons. I think that the reasons are the end of the Cold War, the enough growth of Japanese economy and the change of structure of Japanese population.
I think that the end of the Cold War is the most important, because it was the drastic change of the world scheme. Prime Minister Koizumi has changed the system of iron triangle partially. The next prime minister should make the new system of Japan. Maybe it will be destruction of iron triangle.