Comparable Worth: An Economic and Ethical Analysis

This article examines the legal, economic, and ethical arguments supporting and opposing comparable worth. The co- authors advance opposing views on the wisdom of adopting comparable worth as a public policy, and those views are not reconciled within the limits of this essay.     

Macroeconomic Factors and the Asymmetric Predictability of Conditional Variances

This paper investigates the predictability of the volatilities of large versus small firms. Using AR-GARCH models we show that there is symmetry in the ability of firms of different market values to predict conditional variances. Specifically, we show that volatility surprises of small (large) firms are important in predicting the conditional variance of large (small) firms. These results are different than those previously reported which indicate that there is an asymmetry in the predictability of the volatilities of large versus small firms. This predictive ability is still present when the equation of conditional variance includes state variables such as the default premium, dividend yield and the term premium. Finally, our results indicate that the pattern of symmetric predictability is present in both pre- and post-war sample periods.     

Fixed and Sunk Costs Revisited

The authors attempt to clarify the concepts of, and the link between, fixed costs and sunk costs. They argue that the root for possible confusion between fixed costs and sunk costs is the inconsistency in defining the term fixed costs. They define fixed costs uniformly as the costs that are independent of the level of output and suggest that instructors refer to the part of fixed costs that are irrevocably committed as sunk costs. Under these definitions, the statement “there are no long-run fixed costs” is incorrect. Instructors should teach students that in the long run there are no sunk costs, although there may easily be fixed costs.     

On Hotelling's Location Model With a Restricted Reservation Price

This paper studies Hotelling's location model with a restricted consumer reservation price. It establishes that firms will locate closer to the middle of the market when price competition becomes more intense caused by a low reservation price.     

Airline Deregulation: Neoclassical Theory as Public Policy

We present a common analytical framework for evolutionary and institutional economics, conceived as the study of systems that do not tend toward, nor necessarily fluctuate around, a steady state. Using an evolutionary equation, we derive an analytical theory of the relation between resource abundance and the rate of return available under differing institutional structures. We suggest that the recent political and financial turmoil around the world reflects incompatibilities between existing institutional structures and the increasing scarcity of resources. We apply this idea to the most fundamental determinant of any society's prosperity, profitability and even long-term survival, namely its fertility and rate of population growth.     

Improving inventory management in the retail store: The effectiveness of RFID tagging across product categories

While there is a growing body of evidence that Radio Frequency Identification (RFID) tagging can be effective in improving inventory management in the retail store, retailers have little guidance on best practices for implementation. One important unresolved issue is whether tagging is equally effective across different product categories, and if there is a way to predict which categories are better candidates for deployment. We conduct a field experiment comparing the improvement in inventory record accuracy before and after implementing RFID-enabled adjustments to the inventory management system. We find evidence that the effectiveness of RFID tagging is not homogenous for all products. Reductions in the percentage of stockouts ranged from 21% to 36%, depending on category. Categories that are most likely to see a decrease in stockouts, thanks to RFID, have a greater turnover, greater sales volume, greater product variety, lower item cost, and greater inventory density. We draw inferences for retail supply chains which are considering how best to allocate their resources in the most effective manner.     

Accounting for Respondent Uncertainty to Improve Willingness-to-Pay Estimates

In this paper, we develop an econometric model of willingness to pay (WTP) that integrates data on respondent uncertainty regarding their own WTP. The integration is utility consistent, there is no recoding of variables, and no need to calibrate the contingent responses to actual payment data, so the approach can “stand alone.” In an application to a valuation study related to whooping crane restoration, we find that this model generates a statistically lower expected WTP than the standard contingent valuation (CV) model. Moreover, the WTP function estimated with this model is not statistically different from that estimated using actual payment data suggesting that, when properly analyzed using data on respondent uncertainty, CV decisions can simulate actual payment decisions. This method allows for more reliable estimates of WTP that incorporate respondent uncertainty without the need for collecting comparable actual payment data. Dans le présent article, nous avons élaboré un modèle économétrique d’estimation qui internalise l’incertitude des répondants quant à leur propre consentement à payer. L’internalisation est fidèle à la notion «d’utilité»; il n’a pas été nécessaire de transformer les variables ni de calibrer les réponses des répondants avec des paiements réels. L’application de la méthode n’est donc pas dépendante d’autres données ou méthodes. Dans une étude d’évaluation sur le rétablissement de la grue blanche d’Amérique dans laquelle ce modèle a été utilisé, nous avons trouvé que le consentement à payer attendu était statistiquement plus faible que celui obtenu à l’aide de la méthode d’évaluation contingente standard. Par ailleurs, la fonction de consentement à payer estimée à l’aide de ce modèle n’est pas statistiquement différente de celle estimée à l’aide de paiements réels. Cette observation autorise à penser que, lorsque le modèle tient compte des données sur l’incertitude des répondants, les décisions obtenues à l’aide de la méthode d’évaluation contingente peuvent simuler les décisions obtenues à l’aide de paiements réels. Cette méthode permet d’obtenir des estimations du consentement à payer plus fiables, lesquelles intègrent l’incertitude des répondants sans la nécessité de collecter des données comparables de paiements réels.     

Perceptions of tourism products

The concept of the tourism product has been rooted in the minds of industry professionals as the industry has rapidly developed. Yet research into the tourism product and its constitution has not been a particular focus. Smith (1994) was one of the first, and remains one of the few, researchers to have decomposed the tourism product into basic elements. His five elements formed a single core and a series of four encapsulating shells. The study reported here first clarified the definition of tourism product and employed Smith's framework to analyze various tourism products in different tourism sectors. A student sample was used in a survey to rate the importance of five elements of tourism products. The results showed that the five elements were prevalent but that they differed in their importance for tourists across a variety of tourism products. Tangible physical plant was considered to be the most important component of nearly all tourism products. Finally, a new model of the tourism product is proposed here, and managerial priorities when creating sustained and satisfying tourist experiences are discussed.