This book examines the influence of positive affect, negative affect, perceptions of merger and acquisitions success and perceptions of communication regarding merger and acquisitions on organizational commitment after merger and acquisitions. Results indicated that positive affect, perceptions of merger and acquisitions success and perceptions of communications regarding merger and acquisitions were positively related to organizational commitment after merger and acquisitions. However, the study did not find any significant relationship between negative affect and commitment. Although many previous researches indicated that employees from the acquired firm would be less committed to the organization after merger and acquisitions compared to employees from the acquiring firm, the results of the study did not find any significant difference in the level of organizational commitment between the acquired bank's employees and the acquiring bank's employees. The implications of the study are beneficial to not only companies planning for merger and acquisitions, but also to those planning for major corporate restructurings and so forth.