We study the problem of a budget limited buyer who wants to buy a set of items, each from a different seller, to maximize her value. The budget feasible mechanism design problem aims to design a mechanism which incentivizes the sellers to truthfully report their cost, and maximizes the buyer’s value while guaranteeing that the total payment does not exceed her budget. Such budget feasible mecha...

exchange rate has the fundamental role as one of the economy key variables in determining the domestic price. so it is important to know how is the empirical relationship between the exchange rate and domestic prices and the factors influencing this relationship. the main objective of this study is to determine the effect of vehichel imports share on the exchange rate pass – through on domestic...

Most global optimization problems are nonlinear and thus difficult to solve, and they become even more challenging when uncertainties are present in objective functions and constraints. This paper provides a new two-stage hybrid search method, called Eagle Strategy, for stochastic optimization. This strategy intends to combine the random search using Lévy walk with the firefly algorithm in an i...

Increasing competition in the air transport market has intensified active airlines’ efforts to keep their market share by attaching due importance to cost management aimed at reduced final prices. Crew costs are second only to fuel costs on the cost list of airline companies. So, this paper attempts to investigate the cockpit crew pairing problem. The set partitioning problem has been used for ...

We study the problem of mechanism design for a double auction market where multiple buyers and sellers buy and sell a commodity. We design and implement a matching algorithm that maximizes market liquidity, including the number of transactions and buy/sell-volume. We prove that, given the number of matches, the algorithm also maximizes auctioneer’s profit. Based on the CAT Tournament (Trading A...

The paper examines the impact of marketing segmentation practices on the performance of selected Nigerian commercial banks in the post consolidation era 2005 to date. Data employed were mainly secondary while the research design was exploratory in nature relating such basic variables as market segmentation practices of market share; pricing and geographical branch location to performance. Stati...