DO DEVALUATIONS IMPROVE THE TRADE BALANCE? THE EVIDENCE REVISITED

This paper reexamines the effectiveness of devaluation in trade balance adjustment. The question is addressed in a framework which improves the previous empirical literature in several respects. The evidence indicates that devaluations have been a successful tool in inducing trade balance adjustment. In particular, nominal devaluations are found to result in significant real devaluations that last for at least three years, and the real devaluation induces significant trade flows that are distributed over a two-to three-year period. The evidence comes from two different samples, 1953-73 and 1975-84, involving twenty-seven countries and sixty devaluation episodes.     

THE USE OF COLLATERAL TO ENFORCE DEBT CONTRACTS

This paper analyzes the enforcement of debt contracts by treating the adherence to a contract as a matter of choice. Many commonly observed features of debt contracts, including the widespread use of collateral, are shown to be market responses to the costs of enforcing contracts. The characteristics of the collateral asset, including its marketability and expectations regarding its future price are shown to have important effects on the payments schedule of the debt. Since default is treated as a choice variable I am able to demonstrate the effects of macroeconomic fluctuations on default rates and lending decisions. Thus the analysis provides a basis for modeling the multiplier phenomena associated with the collapse of lending markets during severe depressions.     

MANAGING PRODUCT RETURNS FOR REMANUFACTURING

Firms are often encouraged to offer environmentally friendly products as a demonstration of corporate citizenship. However, this may prove to be an unrealistic expectation since a rational firm will only engage in profitable ventures; those that increase shareholder wealth. We develop a framework for analyzing the profitability of reuse activities and show how the management of product returns influences operational requirements. We show that the acquisition of used products may be used as the control lever for the management and profitability of reuse activities. These activities, termed product acquisition management, affect several important business decisions. First, if a firm is to pursue reuse activities, these reuse activities must be value‐creating. Second, if a firm is to compete by offering remanufactured products, then we show how product returns management influences the overall profitability of such activities via a trial and error EVA approach. Third, we show how operational issues are strongly affected by the approach used to manage product returns. There is a need for future research specifying the mathematical relationship between acquisition price and the nominal quality of the returned product.     

CAPACITATED REMANUFACTURING WITH SERVICE LEVEL CONSTRAINTS*

This research examines production planning and control for a remanufacturer that can sell returned items on a graded as‐is basis or remanufacture the returned items. Using a GI/G/1 queuing network, we model the firms decision to remanufacture an optimal product mix over the long run that maximizes profits while maintaining a desired service level. We further use simulation to explore dispatching heuristics that can be used at the shop‐floor level to achieve the desired optimal product mix, while meeting the service level constraint. Our research is grounded in actual practice and the results provide key insights into the decision‐making process required to maximize profits and minimize average flow times for remanufactured products.