Why does the WORLD use the United States Dollar?  Does it make sense to the People's Republic of China that the Renminbi is ready to assume the dollar's place?  Given that China is the manufacturer of the world, why should transactions take place in USD? Petrodollars may become Petroyuan. Are you ready?  Wouldn't RMB use be easier, faster, and cheaper for trade-settlement with the global manufacturer? The USD is the center international currency, used the most over any o