Ali Rostami far - Ph.D. student of Private Law, Faculty of Law, Theology & 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 olitical 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 tourismcontracts and prove the importance and relevance of public order to economic equilibrium. Theschool of law and economics is one of the most important schools of law among applied lawsystem. The primary purpose of the economic equilibrium of tourism contracts is to provide andguarantee the interests of parties efficiently and this function should lead to socio-economicefficiently for the whole society. For this purpose, a superior power must be able to guaranteethe economic equilibrium of the tourism contracts and establish a strong executive guarantee toavoid disrupting contracts. In other words, protecting the economic equilibrium of tourismcontracts is the task of an institution called public order and lawyers and economists believe thatthe task of enforcing public order is one of the duties of the state.The results of this study showthat maintaining the economic equilibrium of a ground in order to achieve exchangeable justicein its true sense as well as the main goals of community contracts (contracts in society.) As aresult, 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 andlegal criteria and the lack of economic equilibrium will lead to inefficiency of the contract andone of the obvious effects not doing that will be ineffectiveness of the contract and terminationof the contract.

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