option of defect is one of common options between sale and rent contracts, however, it has special rules and conditions in those contracts. in the sale contracts, any defect in the sold or bought thing causes the victim has option of defect but in the rent contracts, only the defect creates option of defect that causes hardship in using of goods or reducing of benefits. in the sale, defect of s...

We analyze contingent price contracts as a mechanism for mitigating the effects of increased quality uncertainty in e-commerce. A contingent contract specifies a sequence of possible quality levels and corresponding prices. Electronic commerce infrastructure enables the capture and dissemination of information about the likelihood of each quality level. When the public probabilities differ from...

today’s energy reauiraments have produced an increase in drilling activities all around the world. among this situation is the fact that all the operators are trying to minimize cost without reduction in quality. so, they are looking for new types of contracts between all drilling companies, contractors and suppliers until that with make agreement between them have successful operations. in thi...

Background: Success in assisted reproductive techniques is raising hope for many infertile couples, but as in these techniques many embryos are made, there is no choice other than cryopreservation of the not-transferred embryos. Along with development of these techniques, the number of In-vitro made embryos is rising and the number of transferred embryos is decreasing to prevent multiple gestat...

This paper empirically tests for a multidimensional separating equilibrium in contract negotiations and tests for evidence of the moral hazard inherent in many contracts. Using contract and performance data on players drafted into the National Football League from 1986 through 1991, we find evidence that players use delay to agreement and incentive clauses to reveal their private information du...

in donation contract, the principle is that donor can refer to given property and to take its possession. this principle has some exceptions. one of these exceptions is “donation to children”, which is irrevocable in accordance with the first paragraph of article 803 of civil law. most of the civil law’s writers believe that judgment about donation to children include the donation to grandchild...

The members of a chain always try to find new ways in order to raise their profit. Hence we intend to study two different scenarios in a single item two-echelon green supply chain including two manufacturers and one retailer to study the effects of two effective contracts on members’ profit. Two scenarios are discussed and in first one, first manufacturer proposes quantity discount contract to ...