부산대학교 도서관

In this study, we measured efficiency of Chinese firms using DEA (data envelopment analysis) model according to input and output by industry with panel data of Chinese listed companies from 2007 to 2020 to investigate the improvements in R&D efficiency around privatization. From the perspective of corporate R&D investment efficiency, the effects of government ownership ratio, technological innovation competency and R&D investment on the efficiency and performance of state-owned enterprises (SOEs) for some years after privatization are investigated. Based on the results of fixed effects panel regressions ans spatial Durbin panel regressions, we have the following conclusions. First, privatization improves the efficiency of corporate technological innovation activities in China for years including the year of privatization and then aggravates it. Its effects are similarly or exactly reflected in their corporate profitability for the same period. Second, the technological efficiency improves corporate profitability for five years. Third, government ownership improves investment efficiency for the non-privatized firms, including both private firms and government firms, but not for privatized firms. Fourth, technological innovation competency and R&D investments improve their efficiency, but hurt their current-year profitability. Fifth, the effects of privatization, technological innovation and government ownership last positively for one year for privatized Chinese SOEs while such effects on corporate profitability last only for the year after privatization positively during the year, negatively for 5 years in technological innovation and R&D investments. Lastly, in consideration of regional characteristics, privatization has a positive (+) effect on corporate efficiency and profitability across region. Within regions, the metropolitan area, the central region, and the northwest region seem to be on the rise in corporate efficiency, while the coastal area is on the decline. Thus, the privatization of Chinese SOEs has been successful in improving their technological efficiency and profitability for a short period of time, which turns adverse afterwards. The results imply that privatized firms need improvements in the efficiency of technological innovation and R&D investments activities for long-term improvements in efficiency and profitability, with spillover effects across regions nearby.