My research topic concerns the institutional theory, in particular, the effects of institutional environment on organizational structure and decision processes. The topic is based on the previous studies suggesting that the adoption of organizational structure and decision process is influenced by the institutional environment. To examine the institutional effects, the coercive, normative and mimetic forces will be measured. Regarding the organizational structure, the degree of structural formalization, centralization and complexity will be measured. For decision processes, the degree of rationality and incrementality will be measured. The questionnaires and other sources of secondary data will be used to measure variables. Regression and logit models will be used for data analysis. The interpretation of results, the limitation of research, and suggestions for future research will be provided.