Ali Rostami far - Ph.D. Student of Private Law, Faculty of Law, Theology and Political Science, Research Branch, Islamic Azad University, Tehran, Iran
Ghassem Mohammadi - Assistant Professor, Faculty of Law, Shahid Beheshti University, Tehran, Iran
Najad Ali Almsi - Professor, Faculty of Law and Political Science, Tehran University, Tehran, Iran
Yadollah Dadgar - Professor, Faculty of Economics, Shahid Beheshti University, Tehran, Iran

The purpose of this research is to clarify the importance of economic equilibrium of tourism contracts and prove the importance and relevance of public order to economic equilibrium. The school of law and economics is one of the most important schools of law among applied law system. The primary purpose of the economic equilibrium of tourism contracts is to provide and guarantee the interests of parties efficiently and this function should lead to socio-economic efficiently for the whole society. For this purpose, a superior power must be able to guarantee the economic equilibrium of the tourism contracts and establish a strong executive guarantee to avoid disrupting contracts. In other words, protecting the economic equilibrium of tourism contracts is the task of an institution called public order and lawyers and economists believe that the task of enforcing public order is one of the duties of the state.The results of this study show that maintaining the economic equilibrium of a ground in order to achieve exchangeable justice in its true sense as well as the main goals of community contracts (contracts in society) As a result, it guarantees the effectiveness of the contract in the interest of social interest, and also, the economic equilibrium of the tourism contract must be consistent with socio-economic and legal criteria and the lack of economic equilibrium will lead to inefficiency of the contract and one of the obvious effects not doing that will be ineffectiveness of the contract and termination of the contract.

School of Law and Economics, Economic Equilibrium, tourism Contract, Public order