This paper aims at determining the optimal number of new facilities besides specifying both the optimal location and design level of them under the budget constraint in a competitive environment by a novel hybrid continuous and discrete firefly algorithm. A real-world application of locating new chain stores in the city of Tehran, Iran, is used and the results are analyzed. In addition, several...

We adapt the competitive location model based on maximal covering to include the knowledge that a competitor will enter the market later with a single new facility. The objective is to locate facilities under a budget constraint in order to maximise the remaining market share after the competitor’s later entry. We develop mixed zero-one programming formulations for each of the following three s...

in this research, an integrated inventory problem is formulated for a single-vendor multiple-retailer supply chain that works according to the vendor managed inventory policy. the model is derived based on the economic order quantity in which shortages with penalty costs at the retailers` level is permitted. as predicting customer demand is the most important problem in inventory systems and th...

E xecutive compensation is a topic that has received attention both in the media and the academic literature. This article discusses issues relevant to the construction and interpretation of compensation …gures typically reported in both sources. First, it is not clear what precisely should be included within a measure of the chief executive o¢ cer’s (CEO’s) income tied to his …rm. Second, the ...

This paper examines whether the different types of block shareholdings will have a different impact on the extent of Web voluntary disclosure during the differential privatization stages. Prior literature suggests that block ownership may have a substitutive or complementary monitoring effect on corporate disclosure. However, for economies transferring from state endowment to being privately he...

In this research, an integrated inventory problem is formulated for a single-vendor multiple-retailer supply chain that works according to the vendor managed inventory policy. The model is derived based on the economic order quantity in which shortages with penalty costs at the retailers` level is permitted. As predicting customer demand is the most important problem in inventory systems and th...

Consider a competitive “spectrum economy” in communication system where multiple users share a common frequency band and each of them, equipped with an endowed “monetary” budget, will “purchase” its own transmit power spectra (taking others as given) in maximizing its Shannon utility or pay-off function that includes the effects of interference and subjects to its budget constraint. A market eq...

Supplier selection and material procurement planning are the most important issues in supply chain management. This decision is complicated when the buyers face with discount price schemes. In real situation, each supplier may apply different methods such as different types of discount schedules and various types of payment in order to increase market share. In this situation, buyers try to sel...

We analyze a model where budget-constrained buyers need to partition their budgets among multiple capacity-constrained sellers. Each seller designs his allocation rule endogenously, as part of a two-stage game: First, sellers simultaneously design allocation rules. Second, given these rules, buyers simultaneously decide how to partition their budgets among the different sellers. The goal of eac...