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The Effects of Incentives to Employees on The innovation and Financial Performance of Chinese Firms
Yi Huang,Sunghwan Kim 한국재무학회 2022 한국재무학회 학술대회 Vol.2022 No.11
본 연구는 첨단기술기업과 인센티브 관련 활동이 2,517개 중국 상장된 기업의 재무성과 및 기술혁신에 미치 는 영향을 상하이 및 선전 증권거래소에 조사하였다. 또한 본 연구는 RESSET 데이터베이스와 CSMAR 데이터 베이스에서 21,277개의 기업연도 관측치를 병합한 패널 데이터를 사용하였다. 특히 본 연구에서는 LM과 Hausman 검정과 같은 모델 선택 과정을 통해 REM과 OLS와 같은 다른 인기 있는 회귀모형에 비해 선택이 가 장 적합한 모델인 FEM을 사용하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 핵심기술직원에 대한 지분 인센티브 제공이 장단기적으로 기업의 기술혁신에 긍정적인 영향을 미친다. 둘째, 경영진 지분이 단기적으로 기업의 기술혁신에 긍정적인 영향을 미치지만, 장기적으로는 그렇지 않다. 셋째, 핵심기술직원에 대한 지분 인센티브 제공이 장단기적으로 기업성과에 부정적인 영향을 미친다. 넷째, 경영진 지분이 단기적으로 그리고 3년 이내의 기업성과에 긍정적인 영향을 미친다. This study investigated the effects of high-tech firms, and incentive-related activities on the financial performance and technological innovation of 2,517 Chinese listed firms on Shanghai and Shenzhen Stock Exchanges. Moreover, this study used 21,277 firm-year panel data, extracted from a merged data set of the RESSET database and the CSMAR database. In particular, this study used an FEM, selection as the best-fit model over other popular regression models, such as REM and OLS, through a model selection process such as LM and Hausman tests. First, equity incentives of technician employees positively affect technological innovation in the short and long run. Second, management shareholding has a positive effect on technological innovation in the short run, but not in the long run. Third, equity incentives of technician employees have a negative effect on performance in the short and long run. Fourth, management shareholding has a positive effect on performance in the short run and within 3 years.
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Robust Repetitive Control Design and Its Application on Linear Servo Systems
Zeyuan Li,Wennong Zhang,Yihuang Zhang,Xiang Xu 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
A robust design method of the discrete-time plug-in repetitive control system is proposed. By modifying the stabilizing compensator,the robustness of the repetitive control system can be well ensured together with the zero-following error performance. The designmethod is simple and straightforward. Meanwhile, a novel robustness criterion for the discrete-time repetitive control system isintroduced, and theoretical analysis is taken to compare the robustness of the proposed controller with the widely used zero phaseerror tracking controller (ZPETC). The proposed repetitive controller is implemented in a linear servo system. Simulation isperformed to verify the theoretical analysis, and the experimental results show the effectiveness of the proposed controller.
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Kewang Qu,Guoqing Xu,차석원,Yanhui Zhang,Wei Feng,Junci Cao,Weili Li,Yihuang Zhang,Zhigang Wu 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.9
An innovative permanent magnet synchronous motor rotor position detection method using d-q reference-frames derived from PWM inverter switching is presented based on carrier phase-shift PWM method. It also gives the development the polarity identification at standstill for permanent magnet synchronies motor in the rotary frame with position detected of the neutral voltage. The new technique detects the motor position from simple measurements of the neutral point voltage of the motor influenced by the variation of inductances with respect to rotor position. The transfer is derived with constant element and 2nd harmonic element of selfinductance and mutual-inductance between three phase inductances and the inductance of d-axis and q-axis. Theoretical studies are carried out and verified using experiment results with variation rotor position over one electrical cycle at standstill. Rotor position estimation from stator inductance variation with rotor position is effective in zero speed and low speed.
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