You might want to actually read the law to understand your wrong, in the USA it is illegal. The sherman act, and Anit trust laws prohibit price fixing, and here is wiki to educate you a bit on price fixing =
Price fixing - Wikipedia, the free encyclopedia not that it much matters here the Chinese will still get away with this though China is part of the Act I believe of Anit trust laws, along with Japan and Korea. Here in the USA dealers can not all agree upon setting a price this is price fixing and is Illegal. That's not saying they cant all set a price that is the same, but if they all got together and said we are going to sell this for $xxx and not a penny less, that would be price fixing. Watch what happens, it will start out at $XXX price, then as soon as the first vendor drops his pants all the rest will follow, happens all the time, and in numerous market places, especially the car business.