in this paper, we develop an inventory model with delay in payments for deteriorating items. in our model, retailer who purchases the items enjoys a fixed credit period offered by his/her supplier and, in turn, also offers a credit period to his/her customers in order to promote the market competition. the demand is assumed to be linear function of the retailer's current-stock level. the effect...

In this paper,we investigate the pricing and return policy issueof one-echelon green supply chain, contain a manufacture who produces two type of products: green and non-green products. These products have a same functional but in selling price and environmentally issues have different effects. Also we consider return policy for both products that can stimulate the customer valuation. We develo...

the eight year war between iran and iraq is a sensitive and critical period in iran's foreign policy; particularly towards the european community. accordingly and in spite of the fact that the foundations of the new regime in iran have not been consolidated a full scale war ,was imposed on iran, overshadowing all policies and plans including iran's foreign policy. this paper tries to ...

Background: The relationship between ethics and politics is a subject that is closely related to the philosophy of politics on the one hand and sociology on the other. But it is very difficult to put the two together because politics belongs to the realm of power and domination, and the politician does not involve himself too much in moral concepts that are cumbersome for his purposes in order ...

This paper, I have focused on the tax side of the fiscal policy to  investigate the past and future behavior of fiscal sustainability in Iran. To do so, I have employed two different forward-looking and backward-looking approaches. First, the backward-looking approach is the fiscal policy rule proposed by Daving & Leeper (2011). Precisely, this rule determines that whether the fiscal policy is ...

Background This article conducts a comparative national and subnational government analysis of the political, economic, and ideational constructivist contextual factors facilitating the adoption of obesity and diabetes policy.   Methods We adopt a nested analytical approach to policy analysis, which combines cross-national statistical analysis with subnational case study comparisons to examine...

Background In 2004, the health system in Iran initiated an organizational reform aiming to increase the autonomy of teaching hospitals and make them more decentralized. The policy led to the formation of a board of trustees in each hospital and significant modifications in hospitals’ financing. Since the reform aimed to improve its predecessor policy (implementation of hospital autonomy began i...

since the last few years, criminal policy authorities of iran started to withdraw their previous emphasis on repressive approaches and under the impact of criminological studies and translation of policy initiatives in western countries new concept and vocabulary were entered into official discourse and criminal justice policy of iran. consequently, a list of community-based approaches to crimi...