The Millennium University Journal Vol. 6, No. 1; 2021 ISSN 2225-2533 Published by The Millennium University 18 Factors Affecting Work Performance: A Study on the Commercial Banks of Chittagong and Dhaka Cities in Bangladesh Sudip Dey Lecturer Department of Economics Premier University, Chittagong E-mail: sudipdey1899@gmail.com Md. Touhidul Islam Chowdhury Lecturer Department of Business Administration Premier University, Chittagong E-mail: touhid7766@gmail.com Syed Moinur Rashid Lecturer Department of Business Administration Premier University, Chittagong E-mail: moinurrashid.du@gmail.com Abstract Employees’ work performance is an important issue for the commercial banks of Bangladesh. Therefore, identifying the factors that affect employees’ work performance is also a crucial matter. This study considers working hours, co - workers' behavior, gender discrimination, promotion system, and manager’s attitude as the factors affecting employees’ work performance. On the other hand, creative knowledge and critical thinking capacity, understanding job responsibility and carrying out assigned duties, interest in assigning duties, completion time for assigning duties, and the capability of adaption to changes in job responsibility are considered the determinants of employees’ work performance. A total of 250 questionnaire data sets were collected using a convenience sampling technique from bank employees in Chittagong and Dhaka cities in Bangladesh. The ordinal regression analysis technique was applied to explore the impacts of factors on employees’ work performance. The study found that co -workers’ behavior, gender discrimination, and a manager’s attitude have significant impacts on employees’ work performance. Although the impacts of co-workers’ behavior and manager’s attitude have positive impacts on employees’ work performance, the impact of gender discrimination is negative. Moreover, the impact of working hours and the promotion system have negative impacts which were statistically insignificant according to findings. Finally, the Pearson correlation test results suggest that there is no multi-collinearity problem in the model. Keywords: Working Hours, Co-Workers Behaviour, Gender Discrimination, Promotion System, Manger’s Attitude, Ordinal Regression Analysis, Employees’ Work Performance. 1. Introduction Work performance is an important issue for the banking sector. Banks' profit and loss basically depend on the employees’ work performance. Therefore, identifying the factors of work p erformance in the banking sector is a crucial issue. The study selected working hours, co-workers' behavior, gender discrimination, promotion system or policy, and manager’s attitudes as the factors of work performance. Every organization follows guideline s on the number of hours employees are expected to work in a day, a week, or a month, which is considered a working hour. In an organization, the working hours of employees in the workplace are believed to influence the level of employees’ motivation and therefore their performance (Delsen et al., 2007). Co-workers' behavior in the workplace has been an important issue in this competitive work environment. Several studies found that co-workers' trust and behavior have a positive impact on job satisfaction, which leads to job performance. Gender discrimination has long been a burning issue in organizations as well as in society. Gender discrimination in the workplace, such as discrimination in job compensation packages, hiring discrimination, favoritism related to job promotion,