Besides presenting changes in paradigms, determination of goals and the structure of economic activities as a result of several factors indicated, such as innovations and technical advancements, this paper demonstrates that, based on the axioms of Economics, economic agents have inclined toward future markets instead of present markets, and have also inclined toward earning prestige and commercial fame for their brand instead of ownership and reducing risk and uncertainty.In this connation and the related basic definitions, Contracting which is one of the appropriate approaches to preforming economic activities, has been addressed first of all. Then, based on economic considerations, Scientific principles have been explained in the realm of which the Contracting approach has been formed, and economic agents have worked. These economic principles are: work allotment, economies of scale, mergers and risk.In the end, it has been concluded that following a rational behavior, the economic agents who have accepted the new paradigms, and thereby exploiting the Contracting approach, can obtain economic benefits such as distribution of the risk of activities, increased contribution in economic activities, increased social capital and the development of a professional culture. Furthermore, based on the theoretical issues that were presented, and the empirical studies, the Contracting approach is recommended for perfoming some of the existing various activities.

Successors of Contracting parties are persons who principally or by their representatives or not involved in concluding a contract, but contract's effects, with the whole or a part of parties patrimony, or the subject of the contract, will be transmitted to them, by the effects of contract. We mean the obligatory effects, i.e. rights and obligations. Usually, the successors are divided into two groups: general and particular. General successor is the one who is the substitute one of the parties by transmitting whole or a join part of parties patrimony. But particular successor is a one who has acquired the contractual rights and obligations of transferor will transmission of definite property. In this case, only those rights and obligations are acquired by the assignee which are connected to the property and are necessities and attachments of it.

Background and Aim: Due to the special form of Contracting, Contracting contracts have many complications for the real understanding of the basis and nature of legal works. Financing or finance is one of these things that have made it difficult for the government to exploit and develop oil fields in the current state of embargo. Method: This research is of theoretical type and the research method is descriptive-analytical and the method of data collection is library and has been done by referring to documents, books and articles. Ethical Considerations: In order to organize this research, while observing the authenticity of the texts, honesty and fidelity have been observed. Results: New contracts have been concluded in the phases of South Pars under the title of EPC+F with the condition of introduction of the investor by the EPC contractor, which has countless ambiguities. Including what aspects the contractor introduces the investor and what non-financial incentives this finance contract includes for the investor and the government as an employer and how is reimbursement, insurance, guarantee and bail. Conclusion: In oil contracts, two methods of finance in the form of loans and mutual sales seem suitable, Although in the finance method, unlike the cross-selling method that leads to the introduction of technology and equipment, only emphasis is placed on receiving investment profits and not receiving guarantees and collateral other than the project, and repayment does not require the completion of the project, but in case of project failure, all risks It is addressed to the employer. Therefore, according to the goal of technology development and transfer, it seems that the use of cross-selling method meets the demands of the Iranian employer.

It is well accepted that medical personnel are at higher risk of Contracting swine flu.1 Preventive medicine practice seems to be an effective means for coping with the problem. However, not all personnel are well educated. Many of those who work in hospital have a poor basic knowledge of infection control.2 Herein, I would like to bring your attention to hospital maids-a group of workers who despite of being at high risk of Contracting swine flu, are usually forgotten….