The association between transformational leadership in German hospitals and the frequency of events reported as perceived by medical directors

This paper aimed to evaluate how transformational leadership behaviour is associated with patient safety culture in a hospital context. In line with findings from other high-hazard industries, we predicted that in hospitals, executives’ perceived emphasis on transformational behaviour would positively influence the frequency of events reported by staff on the front line of service provision. Our hypothesis was confirmed by fitting a multivariable regression model to a sample of 507 medical directors of German acute-care hospitals. Results revealed transformational leadership in hospitals was a significant predictor of the reporting frequency of safety events, as perceived by medical directors. Our findings highlighted the critical role that executive behaviour plays in staff participation in patient safety initiatives. Preventing patients from unintended harm can then be traced back to the organisational level that is the farthest away from direct patient interaction. Consequently, these findings may provide guidance for hospitals aiming to raise employees’ awareness of patient safety and prevent unintended patient harm prospectively.     

Reversal and momentum patterns in weekly stock returns: European evidence

We analyze short‐term reversal and medium‐term momentum patterns in weekly stock returns in Europe. Focusing on raw and stock‐specific returns, our empirical results show for both return specifications (a) a negative relation between weekly past returns and future returns in the short run and (b) a positive relation in the medium run. However, returns from reversal and momentum strategies based on stock‐specific returns are less volatile. In further analyses, we find short‐term reversal and medium‐term momentum patterns to be connected to stock characteristics. Looking at the potential causes of these effects, our results do not support the idea that short‐term reversal in weekly stock returns is due to an over‐ or underreaction to firm‐specific news nor that it is mainly driven by illiquidity. Medium‐term momentum in weekly stock returns, on the other hand, can be connected to behavioral biases. Our concluding tests confirm that our findings are robust among industries, in subperiods, for the January effect and in varying market states. Finally, while medium‐term momentum strategies remain profitable after accounting for transaction costs, short‐term reversal strategies can be mainly explained by transaction costs due to their high turnover.     

South Korean social enterprises and their networks: On their organizational linkages at the interstice between the third,public, and corporate sectors

Social enterprise and government interactions have become an increasingly prominent theme in the literature on social entrepreneurship, due in part to the pressures confronting the welfare state and the rise of precarious work. This analysis is motivated by the efforts of the government of South Korea to incubate social enterprises since 2007. The constant scaling of the South Korean government's monitored social enterprise certification scheme had led to the registration of approximately 3440 social enterprises as of May 2021. This study documents the interorganizational network behaviour of these enterprises relative to the public sector, corporate sector, and civil society and the social economy. A cluster analysis approach is utilized to analyse network data obtained from a self-administered survey of 103 government-certified social enterprises operating in South Korea. We find that a sizeable number of government-certified social enterprises have diversified networks, as opposed to public sector-centric networks, although such social enterprises are in the minority. This study references social innovation cluster theory to argue that the aforementioned scheme has attained a partial degree of success in facilitating the emergence of social enterprises with diversified networks.However, the majority remain quasi-governmental implementers of government contracts and, generally, do not engage in networking.