Suchergebnisse

AbstractShifting political interests of government officials stemming from the Provincial Party Congress (PPC) affects the efficiency of urban innovation. In this paper, intra-city collaborative innovation efficiency (CIE) and inter-city CIE were both analyzed. The intra-city CIE among 285 Chinese cities from 2004 to 2018 was estimated using network data envelopment analysis model, with a gravity model utilized to measure inter-city CIE. Based on a fixed-effect model, the relationship between estimated change in CIE and political cycle is revealed from the perspective of PPC. The study finds that across all cities, (1) cyclical fluctuations in CIE synchronize with the timing of PPC. The inter-city CIE is more sensitive to political cycles than that of intra-city. (2) The turnover effect of PPC cannot be equated with leadership transition alone at non-PPC years. Furthermore, heterogeneity analysis identified differential effects of features of government officials and cities on political cycles of urban CIE.

In this study we examined if perceptions of organizational justice and job characteristics mediate the relationship between transformational leadership and the organizational commitment of agency workers in a manufacturing plant in China. Questionnaires were used to evaluate perceived
organizational justice, perceived job characteristics, exposure to transformational leadership, and organizational commitment in 300 agency workers. The results support a structural model whereby transformational leadership is both directly and indirectly associated with the organizational
commitment of agency workers, through perceived organizational justice and job characteristics.

PurposeThe purpose of this paper is to explore the dimensionality of intragroup conflict and to develop an instrument with acceptable psychometric properties for the comprehensive measurement of conflict.Design/methodology/approachThis paper strictly follows the standard scale-developing method: first, establish theoretical dimensions of intragroup conflict; then, develop the initial scale through in-depth interviews and coding schemes; third, revise and verify the scale through exploratory factor analysis and confirmatory factor analysis; and, finally, examine the predictive validity of the new intragroup conflict scale.FindingsThis study identifies four dimensions of intragroup conflict – cognitive conflict, affective conflict, behavioral conflict, and interest-based conflict – and provides evidence of construct validity for a new measure. The results show that cognitive and interest-based conflict affect group innovation performance positively, whereas affective and behavioral conflict affects it negatively.Originality/valueThis study first detects interest-based conflict as a new dimension and explores a more comprehensive scale (ABCI) that reflects all the connotations of conflict, which deepens the understanding of intragroup conflict, laying a solid foundation for empirical studies of conflict.

AbstractTetrabromobisphenol A (TBBPA) is adsorbed on sediments in river environments, and various environmental factors have distinct effects on its adsorption behaviour. Investigating the adsorption behaviour of TBBPA on the sediments in Weihe River Basin is critical for protecting the water environment and providing a theoretical basis for the prevention and control of brominated flame retardant pollution. In this study, the adsorption behaviour of TBBPA on Weihe River sediment was investigated by conducting batch equilibrium experiments, and the effects of pH, dissolved organic matter, and ionic strength on the adsorption of TBBPA were discussed. The obtained results revealed that rapid adsorption was the main mechanism of the TBBPA kinetic adsorption process. The isothermal adsorption behaviour of TBBPA was well fitted by Freundlich model (R2 99.21%) than Langmuir model (R2 98.59%). The adsorption capacity for TBBPA is 34.13 mg/kg. The thermodynamic results revealed that the adsorption process of TBBPA by the sediment was a spontaneous endothermic reaction. The increase in pH and ionic strength inhibited the adsorption of sediments on TBBPA. With the increase in the humic acid concentration, the adsorption of TBBPA initially increased and subsequently decreased. Synchrotron radiation-Fourier transform infrared spectroscopy indicated that the adsorption mechanism of TBBPA on the surface of sediment was mainly π–π and hydrogen bonds. The obtained results are useful for understanding of TBBPA migration and transformation in river water bodies.

AbstractThe city is both a carrier and a subject of innovation. Based on the triple helix theory of industry–university research and the theory of spatial correlation, this study constructs a collaborative innovation framework both within the cities and between cities, and uses a network data envelopment analysis (DEA) model and spatial econometric model to measure and analyze the collaborative innovation efficiency in 75 innovative cities in China. The results show that collaborative innovation efficiency within cities is on the rise, and the efficiency of "research to production" is significantly higher than that of "learning to research." Industrial structure and foreign factors have inhibited the efficiency improvements, and infrastructure and living standards have different promoting effects on different stages of efficiency. Between cities, capital flows have obvious spillover effects, which promote the efficiency of innovation networks, while the long‐term characteristics of institutional learning have a near‐term negative impact.