Research Article

Research on Innovation Efficiency of Listed Companies in Development Zone Based on the Three-Stage DEA-Tobit Model: A Case Study of Hubei Province

Table 2

Development zone and industry classification codes of 24 listed companies.

Stock codeCompany abbreviationDevelopment zone2012 SFC industry code

000852Petrochemical machineryWuhan-Donghu high-tech zoneC35
000988Huagong technologyWuhan-Donghu high-tech zoneC39
002281Light Motion technologyWuhan-Donghu high-tech zoneC39
002377Guochuang high-techWuhan-Donghu high-tech zoneC25
002414Gaode infraredWuhan-Donghu high-tech zoneC39
300018Zhongyuan sharesWuhan-Donghu high-tech zoneC38
300161Central China CNCWuhan-Donghu high-tech zoneC34
300184Liyuan informationWuhan-Donghu high-tech zoneF51
300205Celestial informationWuhan-Donghu high-tech zoneC39
300323Huacan optoelectronicsWuhan-Donghu high-tech zoneC39
600079Renfu medicineWuhan-Donghu high-tech zoneC27
600133Donghu high-techWuhan-Donghu high-tech zoneE48
600345Changjiang communicationsWuhan-Donghu high-tech zoneC39
600355Jinglun electronicsWuhan-Donghu high-tech zoneC39
600498Beacon communicationWuhan-Donghu high-tech zoneC39
002694Gu Di technologyEzhou-economic development zoneC29
300054Dinglong sharesWuhan-economic development zoneC26
300276Mitutoyo intelligentHuangshi-economic development zoneC35
600293Three Gorges new materialsYichang-Dangyang economic development zoneC30
600703Sanan optoelectronicsJingzhou-economic development zoneC39
002013AVICXiangyang-high-tech zoneC37
000821Jingshan Light MachineJingmen-Jingshan economic development zoneC35
600006Dongfeng MotorWuhan-economic development zoneC36
000760SteyrJingzhou-public security economic development zoneC36