Control of bid rigging (dango) is becoming very strict in Japan. For long Japanese people didn't think it a very bad thing. We took it for granted as a necessary evil. We are not living in a society where a winner takes all. Our social-culture was based upon "live and let live" idea. But the time has changed, we are following after American way of market oriented capitalism. Of course, a bid rigging in public works is a very bad thing since it uses tax money.