solid background, but "对金融(资产定价、公司金融)以及宏观经济都产生了兴趣" = still just at very first stage of research as the scope is too big and not specified.
suggestion = (exclude US) consider a good solid master (MPhil / MRes / ....) in economics / econometrics / finance in a university /department that the master and PhD are higher connected. (i.e. coursework done in master can be counted as first part of PhD)