THE ROLE OF COST IN DETERMINING WHEN FIRMS OFFER BUNDLES*

We model competitive bundling and tying, allowing for marginal cost savings from bundling, fixed costs of product offerings, and variation in customer preferences. Pure bundling can arise either because few people demand only one component or because, with high fixed costs, a single product efficiently satisfies customers with diverse tastes. We conclude by analyzing empirically the bundling of pain relievers with decongestants. The discount for the bundled product is large. We argue that our model provides a simpler, more compelling explanation for the size of the discount than the demand‐centered approach to bundling by a monopolist.     

German Employers’ Inputs to Employee Skills Development

Using organizational level survey data, this article analyzes larger German private employers’ inputs to employee skills development, to test the theory that unions and employers’ associations raise employer incentives for training. Large German employers maintained their overall contribution between 1995 and 1999. Indicative data for 2004 suggest that this has continued, yet neither membership of employers’ associations nor high union densities influenced it.     

Equity Issuance and Adverse Selection: A Direct Test Using Conditional Stock Offers

We conduct a unique test of adverse selection in the equity issuance process. While common stock is the dominant means of payment in bank mergers, stock acquisition agreements provide target shareholders with varying degrees of protection against adverse price movements in the bidder's stock between the time of the merger agreement and the time of merger completion. We show that it is the degree of protection against adverse price changes and not the percent of stock offered in a bank merger that explains bidder merger announcement abnormal returns. This result is difficult to explain outside of an adverse selection framework.     

Labor Law Reform: One Step Forward and Two Steps Back

This article deals with the question of whether the reforms proposed by the labor law traditionalists are desirable on economic grounds, and if not, what types of reform might be offered. The specific proposals include increased job security, increased employee participation in decision making, and reform of the National Labor Relations Act (NLRA). The difficulty for reformers is that they have not yet accepted the challenge of designing proposals for today's more competitive labor and product markets. Until this changes, reform efforts can be shown to be backward steps.     

Markov-Chain Analysis of Internal Manpower Supply

The separation of manpower forecasting into a demand forecast and a supply forecast emphasizes that each depends on quite different sources of information. The demand forecast is based primarily on an estimate of sales, which is then transformed into the number and type of personnel needed to produce and sell the company's products. The information for forecasting internal supply can often be treated as if it were independent of the external environment and is often available within the firm. If a matrix representing the probability of transition from one job classification to another can be prepared for the relevant classifications, Markov-chain theory can be used to generate a forecast of internal manpower supply.     

Nonlinearities in Exchange-Rate Dynamics: Evidence from Five Currencies, 1973–94

Although exchange rates appear to follow a random walk when tested against linear alternatives, the null hypothesis of a random walk is rejected against a cubic alternative which embodies the intuition that the rate of mean-reversion increases with distance from equilibrium. A possible theoretical foundation for such a model is suggested. The model is tested on bilateral real exchange rates between four major currencies, and on the real effective exchange rate of these four plus the Australian dollar. The cubic model consistently outperforms its linear counterpart and the results imply that real exchange rates are in fact stationary.