行政契約法的體系思維與法制續造──尋繹行政法律關係論的新視角

Systematic Approach and Legal Construction of Administrative Contract Law–A New Perspective on the Theory of Administrative Legal Relationship

行政契約，顧名思義，指行政權透過合意的方式與其他行政主體或人民簽訂契約，作為履行行政任務的制度工具，不以執行法律為限，功能不亞於行政處分。本文探討行政契約作為一項行政法制度的規範體系，並思索其秩序理念與法制建構的應有取向。全文先從成文法規切入（主要是行政程序法），解構行政契約的概念要素與規範內涵，勾勒行政契約的法制特徵，循此指出行政契約的核心要素是「公法上法律關係」。繼之，從行政法律關係的視角，探析在行政實體法與行政訴訟法交錯之下行政契約制度的內在與外沿，特別是行政契約與行政處分間之制度關聯，期有助於行政契約法學的發展，進而建構行政契約法律關係的完整圖像。

Administrative contracts are institutional instruments that emphasize authorities fulfilling statutory mandates by reaching agreements, as implied by their term. Its function and importance are not inferior to an administrative act. This research aims to delve into the regulatory functions of the administrative contract within the administrative law system. It starts with an analysis of the statute law (the Regulations of the Administrative Procedure Act) to deconstruct conceptual elements and normative content, outlining the features of the institution. Throughout this process, the research highlights that the core of the administrative contract lies in its normative feature, namely“legal relationships under public law”. Subsequently, from the perspectives of administrative material law and administrative procedural law, this research determines the boundaries of the administrative contract, particularly focusing on the relationship between the administrative act and the administrative contract. It is hoped that this essay will contribute to advancing administrative law, thus constructing the entire picture of the legal relationship of the administrative contract.