This study examines the role of law in regulating business competition to develop the economy is needed. The purpose of this research is to find out and reveal the role of law in developing the economy. This research method uses normative legal research method, it is intended to identify and reveal the role of law in economic development. The results of this study indicate that the role of law in regulating business competition to develop the economy is very much needed so that business competition runs orderly and does not violate the rights of fellow business actors. The role of this law is manifested in government policies required by developing countries far beyond the needs of the developed industrial countries which have been established. The developed countries already have legal mechanisms in place to accommodate changes in their societies. Meanwhile, developing countries are not like that. In fact, the hopes and desires of people in developing countries for the realization of changes that bring about a greater improvement in living standards exceed the expectations needed by people in developed countries. The growth and economic development of the Indonesian state and in the world will be much influenced by fair business competition among business actors, both now and in the future. While, the healthy competition will be determined by legal policies in economic development; legal policies in business competition; politics of law formation and decision-making processes in the formation of business competition law

This research aims to reveal stability Friedrich Carl Von Savigny’s thoughts on the existence of annual sale and purchase customary love establishment. This research uses legal research methods, namely research carried out on legal norms that develop in society. The approach used is a conceptual and historical approach. The types and sources of data used in this research are primary and secondary data. The results of this research show that the teachings of the historical school initiated by Von Savigny emphasize that law is a reflection of the soul of the people that grows together with the people’s growth of the people and becomes strong together with the people’s strength. Furthermore, in the end, it dies if the nation loses its nationality. Thus, adherents of the historical school reject the view that law is made by an authorized institution, such as by making laws. Meanwhile, customary law that exists in Madurese society as the customary law of the Madurese people in some villages, such as “annual purchase and sale,” as the customary law of the community is maintained in the practice of annual purchase and sale of a plot of land that is perhaps not found in other areas in Indonesia. It is similar to the historical school, namely that law grows together with the growth of society and becomes strong together with the strength of society. Furthermore, in the end, it dies if the nation loses its nationality. This condition is recognized as existing by the constitution of the Indonesian legal state as regulated in Article 18B paragraph (2) of the 1945 Constitution of the Republic of Indonesia.