MARKET STRUCTURE,CAPITAL INFLOWS,AND HOME WELFARE

The welfare implications of foreign capital inflows in an economy with an imperfectly competitive product market and a capital-intensive import-competing sector are analyzed. If the market structure is exogenous with a fixed number of firms, then a capital inflow improves welfare of the host country. However, if the market structure is endogenous, then a capital inflow tends to be immiserizing because it increases entry and reduces per firm output, thus driving firms up their average cost schedule. In addition, the welfare implications of capital inflows in the presence of trade restrictions are also studied, generating some new insights.     

Optimal replenishment order for uncertain demand in three layer supply chain

The authors study the well-known order quantity model in a three-player context, using a framework of newsboy problem. An expected average cost function of the chain by trading off inventory cost and shortage costs is formulated which is minimized to obtain optimal order sizes of the supplier, manufacturer and retailer. Our theoretical analysis of both cases; (i) when demand per unit time of each member of the chain is uncertain, (ii) when uncertain demand is distributed uniformly over finite time horizon; suggests the determining of optimal order sizes of the members so that the expected average channel cost is minimum. Numerical examples for different distributions are illustrated to justify our model.     

Job-search and foreign capital inflow — A two sector general equilibrium analysis

The purpose of this paper is to extend the Fields' (1989) multi sector job-search model by introducing international trade and capital. Two types of capital are considered: fixed capital and mobile capital. The effects of search intensity and the inflow of foreign capital on the volume and the rate of urban unemployment and on the social welfare are also examined in both of the two cases. The main finding is: more efficient on-the-job search from the rural sector raises unemployment rate when capital is mobile between the two sectors. This is counterproductive to the standard result.     

Multi-item EOQ model while demand is sales price and price break sensitive

In this paper, the authors study a multi-item deterministic EOQ (economic order quantity) model for a vendor when the demand rate of the essential commodities decreases quadratically with increasing sales price and increase exponentially with increasing level of price breaks. A price discount is offered to the customers when the revenue of the vendor crosses the level of price break. The main aim of the present article is to find out the optimal order quantities, optimal selling prices and optimal level of price break in order to maximize the average profit of the whole products. Numerical examples are also illustrated to test of our proposed model.     

Propensities to engage in and punish corrupt behavior: Experimental evidence from Australia, India, Indonesia and Singapore

This paper examines cultural differences in individual decision-making in a corruption game. We define culture as an individual's accumulated experience, shaped by the social, institutional, and economic aspects of the environment in which the individual lives. Based on experiments run in Australia (Melbourne), India (Delhi), Indonesia (Jakarta) and Singapore, we find that there is a greater variation in the propensities to punish corrupt behavior than in the propensities to engage in corrupt behavior across cultures. Consistent with the existing corruption indices, the subjects in India exhibit a higher tolerance of corruption than the subjects in Australia. However, the subjects in Singapore have a higher tolerance and the subjects in Indonesia have much lower tolerance of corruption than expected. We conjecture that this is due to the nature of the recent institutional changes in these two countries. We also vary our experimental design to examine the impact of the perceived cost of bribery and find that the results are culture-specific.     

Are short‐term effects of pollution important for growth and optimal fiscal policy?

We study optimal fiscal policy in a stock‐flow model of the environment within an endogenous growth framework, where some pollutants have a lasting impact on environmental quality which is restored through abatement expenditure, while others dissipate and hence, have a short‐term effect on the environment. All pollutants, however, affect the productivity of a public good negatively. Given that short‐term pollution, although it dissipates, is irreversible in this sense, a government cannot ignore its negative effects since this type of pollution lowers the productivity of all inputs. We find that a larger negative effect of short‐term pollutants as well as a higher congestion effect of private capital leads to corrective fiscal policies with higher optimal income tax and abatement expenditure rates, which have favorable growth consequences. Interestingly, we find that the rate of short‐term pollution does not affect optimal fiscal policy while that of the long‐term pollution does.     

A general equilibrium approach to wage bargaining and employment

This paper attempts to capture the effects of cyclical fluctuations in business activity on factor prices and employment levels in a two-sector model with wage bargaining.     

Optimal Commodity Taxes in Australia

The recent changes to commodity taxes in Australia have led to renewed interest in a classic question in public finance: should the tax rates be uniform or differentiated? This article attempts to answer this question by calculating optimal commodity taxes in Australia for a nine‐item disaggregation. The estimates point to non‐uniform commodity taxes, even from the viewpoint of an inequality‐insensitive tax planner. The optimal commodity taxes bear little resemblance with the pre‐GST or post‐GST tax rates. No less significant is our observation that even the purely efficiency‐driven optimal commodity taxes imply lower real expenditure inequality than the actual taxes.     

The Four Umpires: A Paradigm for Ethical Leadership

Theories of leadership have traditionally focused on leadership traits, styles, and situational factors that influence leader behaviors. We propose that The Four Umpires Model described herein, which examines how four leadership types view reality and perception, provides a useful example of an effective steward leader. We use the Five Beliefs Model identified by Edgar Schein and Peter Senge to frame the implicit assumptions underlying the core beliefs and mental models of each of the four umpires. We suggest that the stewardship model of Umpire Number Four, the Facilitating Idealist, is the best model for leadership of the four umpires described. In our review of the Four Umpires Model we also explain why it is importance for every leader to thoughtfully assess the assumptions that form the ethical basis for leadership decisions and actions.     

Bayesian inference for the gravity model

This paper seeks to empirically extend the gravity model, which has been widely used to analyze volumes of trade between pairs of countries. We generalize the basic threshold tobit model by allowing for the inclusion of country‐specific effects into the analysis and also show how one can explore the relationship between trade volumes and a given covariate via a non‐parametric approach. We use our derived methodology to investigate the impact of a particular aspect of institutions—the enforcement of contracts—on bilateral trade. We find that contract enforcement matters in predicting trade volumes for all types of goods, that it matters most for the trade of differentiated goods, and that the relationship between contract enforcement and trade in our threshold tobit exhibits some nonlinearities. Copyright © 2007 John Wiley & Sons, Ltd.