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The aim of this study is to analyze the relationships between leadership effectiveness, knowledge sharing behavior, business performance, firm strategy, and firm performance. In this study, to reveal the relationships, statistical analyses were applied to the data collected using one-to-one questionnaire techniques while the relationships between the variables were tried to be revealed. In this study, the importance of knowledge sharing behavior and the positive effects of both independent variable and mediator variable on the organization are emphasized. In addition, the positive effect of leadership effectiveness and knowledge sharing behavior on work performance, firm strategy, and firm performance variables was detected. Analysis was made using LISREL, IBM SPSS 23 software program, and SPSS PROCESS V.3 add-in, and confirmatory and explanatory factor analysis and reliability analysis were performed on questions using Likert-type scale. In the analysis of the relationships between variables in the correlation menu of the main menus of SPSS Program, the regression menu was used to test the hypotheses and to reveal the mediation variable effect of the PROCESS V.3 add-in. Confirmatory factor analysis was performed by LISREL program.

Objective of the Study: The purpose of this study was to analyze the relationships between the variables of diversity management, charismatic leadership, innovation speed, innovation performance, and company performance.Methodology/Approach: A survey study was conducted with 427 employees (both technicians and engineers) working at companies that operated in the manufacturing industry in the scope of the research purpose. SPSS 25 and SPSS AMOS programs were used incrementally, and the acquired data were evaluated and analyzed.Originality/Relevance: In this research, white-collar workers constituted our sampling group because they play a key role in product innovation. While gathering the analysis data, the first 500 companies registered in Istanbul Chamber of Industry were determined, and manufacturing companies operating in Istanbul constituted the main part of the study.Main Results: As a result of the analysis, it is understood that diversity management and charismatic leadership have a positive influence on innovation and performance.Theoretical/Methodological Contribution: In terms of innovation and company performance, the study revealed the mediation effect of charismatic leadership linked to diversity management.Social/management contributions: In order for organizations to carry out creative and innovative activities, it is very important to effectively manage different ideas and thoughts within organizations. In fact, charismatic leadership positively affects employees, helping them to perform better. Therefore, employees must be actively involved in order to successfully carry out innovation.

C OVID-19 has had a devastating impact on people worldwide. We conducted an international survey (n = 3646) examining the degree to which people's appraisals and coping activities around the pandemic predicted their health and well-being. We obtained subsamples from 12 countries-Bangladesh,

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