In this paper, the classical economic production quantity (EPQ) model is developed for non-instantaneous deteriorating items by considering a relationship between the holding cost and the ordering cycle length. Two models are developed. First, the proposed model is considered when backorders are not permitted and this condition is waived for the second case. The cost functions associated with t...

Background: Helicobacter pylori may cause many gastrointestinal problems in developing countries such as Iran. We aimed to analyze the cost- effectiveness and cost- utility of the test-and-treat and empirical treatment strategies in managing Helicobacter pylori infection.            Methods: This was a Markov based economic evaluation. Effect...

the rule of necessity to respect the principle of good faith in performance of the contract is the result of :union: rights and ethics. good faith in performance of the contract with subjective and objective criteria and using cost-benefit analysis, wealth maximization, game theory, efficiency and welfare standards, leading to the achievement of the objectives set by the parties of contract. la...

The allocation of risks among the contracting parties in a contract is an important decision affecting the project success. Some risks in a project are uncontrollable; these are imposed to a project by external factors. Since contracting parties can neither control nor affect the occurrence of such risks, their allocation to a party would be inequitable. Therefore the cost overrun related to un...