Dollar dominance is sowing the seeds of financial turmoil, and the solution is to promote new reserve currencies, a Chinese government economist said in a paper published on the eve of a G20 meeting about how to reform the global monetary system. Although not an official policy statement, the paper by Xu Hongcai, a department deputy director at the China Center for International Economic Exchanges, offered a window onto the domestic pressures bearing on Beijing to move away from a dollar-centric global economy. The China Center, a top government think tank, has represented the Chinese government in organizing a forum on Thursday in Nanjing that will bring together finance ministers, central bankers and academics from the Group of 20 wealthy and developing economies.