[1] Swiss Fed Inst Technol, CEPR & CESifo, Zurich, Switzerland
[2] Jinan Univ, Inst Ind Econ, Guangzhou, Peoples R China
[3] Guangdong Univ Foreign Studies, Inst Studies Great Bay Area Guangdong Hong Kong Ma, Res Ctr Accounting & Econ Dev Guangdong Hong Kong, Guangzhou, Peoples R China