이 논문은 민력의 이사 택일 이론을 천기대요와 협길통의의 내용과 비교⋅고찰한 것이다. 민력의 이사 택일 이론은 대부분 천기대요와 협 길통의에서 문헌적 근거를 찾을 수 있었다. 민력에 있는 이사 택일 이론의 원리는 年, 月, 日, 時를 기준으로 분류할 수 있다. 민력의 택일 이론은 한 가지 원리가 들어간 것은 드물고, 대부분 두 가지 이상의 원리가 결합된 것 이다. 택일 이론들의 역학적 원리를 보면, 八卦를 기반으로 선천팔괘와 후 천팔괘를 사용한 것이 있고, 河圖洛書를 기반으로 洛書九宮, 三元年·月·日 九星紫白, 生氣福德등을 사용한 것이 있다. 六十甲子와 干支를 기반으로 天 干⋅地支, 六十甲子, 甲旬法등을 사용한 것이 있고, 天文과 기타를 기반으 로 12月, 한 달, 30일, 춘하추동, 사계, 24절기, 북두칠성, 월삭, 공망 등을 사용한 것이 있다. 주제어: 민력, 택일, 이사 택일, 역학적 원리, 신살.

Thanks to the support and encouragement of the Chinese government over the past decade, China’s platform economy has made rapid progress. However, as some large-scale big-tech companies grew into super-platforms, they formed a structure that dominated the market and their behaviors of “choose between two” became widespread. On February 7, 2021, the competition authorities promulgated the <Anti-Monopoly Guidelines on the Platform Economy of the Anti-Monopoly Committee>, which ended the era of unlimited policy support for Chinese platform companies and entered an era of strong management supervision. The platform’s forced act of “choosing between two” is currently receiving the most attention among the platform's anti-competitive acts, and three routines are currently being used simultaneously in China to regulate this. The first is legislation, and the second routine is the strong administrative punishment of competition authorities. In addition, China is actively applying the means of corporate interviews to suit the characteristics of its social system. These measures have sufficiently shown the attitude of competition authorities and serve as a preventive and warning to other platform companies. There are still problems to be solved, for example, whether to view each side as a separate market or a unified market in defining related markets in a two-sided market (multi-market) formed by platform is the first problem. In addition, legislation is inconsistent in the analysis method, creating confusion in the enforcement law in practice. Then, there are still many difficulties in determining the platform’s dominant market position, and due to the confidentiality and technology of some “Choose between two” actions adopted by the platform, there will be many difficulties in proving them and obtaining damages.