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151.
The potential effect of financial variables on the level of investment is among the key issues in contemporary financial economics. Some researchers have claimed that there is an inherent risk in the Islamic profit-and-loss sharing scheme that replaces the western fixed-interest rate system. This paper argues that such concerns are baseless. In an Islamic framework, equity capital (i.e., strong financial position) and the profit-sharing ratio are primary determinants of investment. It is shown that both factors could enhance the firm's business reputation and its investment activities. The paper, in so doing, constructs a two-period equilibrium model of profit-sharing contracts. An optimal solution for the investment function is derived for the banking firm. Besides equity capital and the profit-sharing ratio, other relevant determinants of investment are also considered, including depreciation and expected inflation. Moreover, unlike most previous research in this area, the resultant investment (and profitsharing ratio) functions are subjected to empirical testing using data from a representative Islamic bank. 相似文献
152.
Khaled F. Abdelghany Sharmila S. Shah Sidhartha Raina Ahmed F. Abdelghany 《Journal of Air Transport Management》2004,10(6):385-394
On-time performance of airlines schedule is key factor in maintaining current customer satisfaction and attracting new ones. This requires management of the different operation resources (crew/aircraft) to ensure their on-time readiness for each flight in the planned schedule. However, flight schedules are often subjected to irregularity. In particular, weather accounts for nearly 75% of system delays. Due to the tight connection among airlines resources, these delays could dramatically propagate over time and space unless the proper recovery actions are taken. This paper presents a model which projects flight delays and alerts for possible future breaks during irregular operation conditions. The results of applying the model at the operation control center of a major airlines company in the US are presented. 相似文献
153.
Despite achieving a significant cost reduction over the past two decades, the absolute cost of food subsidies in Egypt is still high relative to the benefits received by the poor. There is scope for better targeting these food subsidies, in particular for targeting cooking oil and sugar ration cards, both because reforms in this area are perceived to be far less politically sensitive than adjusting subsidy policy for bread and wheat flour and because higher income groups presently receive a significant percentage of the benefits. Targeting the high-subsidy green ration cards to the poor and the low-subsidy red ration cards to the nonpoor will require identification of both poor and nonpoor households. An International Food Policy Research Institute research team in Egypt, in collaboration with the Egyptian Ministry of Trade and Supply, developed a proxy means test for targeting ration cards. The paper describes the process of moving from the optimal income-predicting model to the final model that was both administratively and politically feasible. An ex-ante evaluation of the levels of accuracy of the proxy means testing model indicates that the model performs quite well in predicting the needy and nonneedy households. An effective and full implementation of this targeting method would increase the equity in the ration card food subsidy system, and, at the same time, the total budgetary costs of rationed food subsidies would decline. Moreover, the experience gained under this reform would facilitate targeting future social interventions to reduce and prevent poverty in Egypt. 相似文献
154.
A volume and material handling cost based heuristic for designing cellular manufacturing cells 总被引:1,自引:0,他引:1
One of the major problems in a group technology or cellular manufacturing environment is the formation of part groups and machine cells. Because of the combinatorial nature of the cell formation problem, it is difficult to solve the problem optimally. Most of the procedures related to cell design in cellular manufacturing operate on the part-machine incidence matrix in an attempt to identify block diagonality. If complete block diagonality does not exist, the decision about cell configuration is left to the subjective judgement of the designer. These procedures are also generally based on part routing only, and do not consider part volume and material handling costs.In this paper we develop an integer programming model, as well as a heuristic to effectively assign machines to cells. In these procedures we consider component volumes, costs related to movement of components between and within cells, and penalty for not using all machines in a cell visited by a component. Since the integer programming formulation becomes large even for small problems, an efficient heuristic is developed to solve larger problems. The heuristic solutions to 180 randomly generated small problems were compared against the optimal solutions obtained by the integer programming model. The heuristic has been found to identify optimal solutions in all 180 cases.This heuristic is also compared to several well known algorithms on 900 larger test problems. These problems were generated to cover a wide range of environmental situations such as varying levels of block diagonality in the part-machine incidence matrix, and diversity in the component volumes and material handling costs. In 99% of the problems our heuristic generated solutions which are better or as good as the best solution obtained by other algorithms. Further, in situations where complete block diagonality in the part-machine incidence matrix did not exist, our heuristic produced even better results. Since the maximum number of iterations required in our heuristic is the number of machines in the problem, the heuristic is computationally efficient. 相似文献
155.
156.
This study examines the relationship between the implementation of the multidivisional (M-form) organizational structure, capital structure and diversification strategy. Findings indicate that implementation of the M-form structure from a hierarchical (U-form) structure is associated with a general increase in the long-term debt-to-equity ratio for all firms, a result that supports a free-cash-flow argument for the use of debt in restructuring to reduce the opportunism of management. Further, as implied by arguments from transaction cost economics, the debt-to-equity ration differs for different types of diversification strategy. 相似文献
157.
Iqbal Ahmed 《World development》1978,6(11-12)
The paper starts with a critique of the various concepts of unemployment and underemployment from which follows the framework in which the author seeks to investigate and estimate unemployment and underemployment. Unemployment is broken down into various categories so that one can know the composition of the agricultural unemployed and underemployed. All the previous estimates had failed to provide such information. In the rest of the paper various estimates are made and implications discussed in the contest of the framework outlined and using first hand information from a survey of some villages conducted by the author himself. 相似文献
158.
159.
Kevin Hjortshøj O’Rourke Ahmed S. Rahman Alan M. Taylor 《Journal of Economic Growth》2013,18(4):373-409
Technological change was unskilled-labor-biased during the early industrial revolution, but is skill-biased today. This implies a rich set of non-monotonic macroeconomic dynamics which are not embedded in extant unified growth models. We present historical evidence and develop a model which can endogenously account for these facts, where factor bias reflects profit-maximizing decisions by innovators. In a setup with directed technological change, and fixed as well as variable costs of education, initial endowments dictate that the early industrial revolution be unskilled-labor-biased. Increasing basic knowledge then causes a growth takeoff, an income-led demand for fewer but more educated children, and a transition to skill-biased technological change in the long run. 相似文献
160.
This article argues that the traditional belief that “consumer ethnocentrism is a phenomenon of the developed countries only” is no longer true. To establish this argument, this study assesses the applicability of the Consumer Ethnocentric Tendencies Scale (CETSCALE) to a developing country Bangladesh. The methodology is based on 788 samples collected from 27 districts of Bangladesh. Results show that for three chosen sociodemographic groups namely, students, job holders, and businessmen, the CETSCALE is to a much extent applicable as the groups have shown positive attitudes in retaining 12 to 14 items out of the 17 items of the original scale. 相似文献