Purpose: This study aimed to determine the influence of digital leadership, total quality management, and knowledge management on companies’ sustainability management in DKI Jakarta. Research methodology: The sampling technique used in this research is the convenience sampling technique. It used primary data through questionnaire distribution with 389 respondents of employees who work in DKI Jakarta. As for the data analysis technique, this research used the regression technique in both simple and multiple regression. Results: The results of this study indicate that digital leadership and knowledge management have a significant influence on the sustainability management of companies in DKI Jakarta. Meanwhile, total quality management does not have a significant influence on the sustainability management of companies in DKI Jakarta Limitations: This study only examines the variables of digital leadership, total quality management, knowledge management, and sustainability management. This research is also limited to employees who work at companies in DKI Jakarta. Contribution: This study shows how the level of digital leadership, total quality management, knowledge management, and sustainability management in companies in DKI Jakarta. This study also shows how digital leadership, total quality management, and knowledge management affect sustainability management. Companies can use this research to improve the company’s sustainability management by implementing digital leadership, knowledge management and paying more attention to the importance of developing total quality management within the company.

Purpose: This research aims to analyze the risk and return of investing in ethereum and LQ45 shares and to see the difference between LQ45 stock prices and ethereum prices before and after the announcement of the Covid-19 pandemic in Indonesia. Research Methodology: The research method uses the Kruskall-Wallis test and the Paired Sample t-test. Results: The results show the level of the return on ethereum and LQ45 shares did not have a significant difference, while the level of the risk between ethereum and LQ45 shares have a significant difference. For the price of Ethereum and LQ45 shares, there was a significant difference between before and after the Covid-19 pandemic was announced in Indonesia. The average price of ethereum and LQ45 shares decreased compared to before the announcement of the Covid-19 pandemic in Indonesia. Limitations: This research was conducted without including the risk-free rate in the calculation of stock risk. Contribution: This research is expected to be a reference for investors in viewed and analyzed investment opportunities based on risk and return during Covid-19.

Purpose:  The purpose of this research is to minimization of snack distribution costs at Marcuy SMEs using the Stepping Stone, Least Coast, VAM and MODI Method. Method: This study uses the type of data obtained is secondary data, namely the data obtained directly at UKM Makaroni Cihuy. In data processing, the data is processed using the transportation model, namely the method of Stepping Stone, least cost, vogel approximation and modi. Result: Based on the results of research on UKM Marcuy for ensure product delivery budget process using the Stepping Stone, Least Coast, Vogel Approximattion Method (VAM) and Modified Distribution (MODI) methods. From the calculation using the four methods get the same result, namely the distribution costs incurred are Rp. 31.750,- for the type of product packaging 90 gr and Rp. 67.000,- for the type of product packaging 133 gr. Limitation: This research is limited to the problem of minimizing the cost of distribution of snacks in UKM Marcuy. In addition, this study is also limited by the transportation methods used, including the Stepping stone, Least Cost, VAM, and MODI methods. Contribution: This research is expected to provide an optimal solution to the problem of optimization of distribution costs in UKM Marcuy. Furthermore, this research can be a reference for research related to the implementation of the stepping stone, least cost, VAM, and MODI methods in minimizing distribution costs.