|   
  |       Increased scale returns (irs)  |       scale remuneration unchanged (-)  |       diminishing returns scale(drs)  |    
|   Province  |       Shanxi, Neimenggu, Jilin, Jiangxi, Heilongjiang, Anhui, Fujian, Hubei, Hunan, Hainan, Chongqing, Yunnan, Shanxi, Xinjiang  |       Hebei, Zhejiang Guangdong, Guizhou, Gansu, Qinghai, Ningxia  |       Beijing, Liaoning, Jiangsu, Shandong, Tianjin, Shanghai, Henan, Guangxi, Sichuan  |