決策研究是研究如何基於決策者的價值與偏好設計和選擇相關備選方案。決策者同時也是設法儘量減少對備選方案的不確定性和疑慮，以便從中做一合理的選擇。本文針對決策理論和臺灣工時案例比較發現：政府政治模式最能解釋立法院的競技場；權力是重要的核心要素，國會中的多數決策取決於黨派鬥爭而非理性問政。

Decision-making is the study of identifying and choosing alternatives based on the values and preferences of the decision maker. Decision making is also the process of sufficiently reducing uncertainty and doubt about alternatives to allow a reasonable choice to be made from among them. The research methods in this study include naturalistic (unobtrusive) and recording observation and case study. Comparing the decision-making theories and the Taiwanese work-hours case study shows that the governmental politics model (or bureaucratic politics model by Wiarda) explains most the legislature’s arena. Power is matter, and the most decisions in Congress are made based on partisan struggle rather than rationality.