Beyond plain vanilla: Modeling joint product assortment and pricing decisions

This paper investigates empirically the product assortment strategies of oligopolistic firms. We develop a framework that integrates product choice and price competition in a differentiated product market. The present model significantly improves upon the reduced-form profit functions typically used in the entry and location choice literature, because the variable profits that enter the product-choice decision are derived from a structural model of demand and price competition. Given the heterogeneity in consumers’ product valuations and responses to price changes, this is a critical element in the analysis of product assortment decisions. Relative to the literature on structural demand models, our results show that incorporating endogenous product choice is essential for policy simulations and may entail very different conclusions from settings where product assortment choices are held fixed.

Competition and Service Quality in the U.S. Airline Industry

The U.S. government, media, and flying public have expressedgreat concern in recent years over both airline market concentration and flightdelays. This study explores potential connections between the two by examining whetherthe lack of competition on a particular route results in worse on-time performance.Analysis of data from the U.S. Bureau of Transportation Statistics in 2000 indicatesthat both the prevalence and duration of flight delays are significantly greater onroutes where only one airline provides direct service. Additional competition iscorrelated with better on-time performance. Weather, congestion, and schedulingdecisions also contribute significantly to explaining flight delays.     

Differentiation and Competition in HMO Markets

This paper examines how differentiation among Health Maintenance Organizations (HMOs) affects local market competition. Most markets for HMOs appear sufficiently unconcentrated; however, differences among HMOs may make competition less intense than the number of competitors would suggest. To investigate this possibility, we distinguish HMOs that serve only local markets from those that operate regional or national networks. We analyze how HMOs of one type affect the profitability of the other using an equilibrium model of entry and product choice. While the two types of HMOs have strong competitive effects within segments, the competitive effect of differentiated firms is negligible.     

Investment Strategies and Market Structure: An Empirical Analysis of Bank Branching Decisions

This paper analyzes the relationship between the competitive environment faced by depository institutions and the decisions these institutions make regarding the size of their branch networks. Specifically, we consider branches as a sunk investment that potentially increases utility for consumers and examine how local competition and product differentiation affect firms’ decisions regarding whether to make such investments. We account for endogenous market structure using an equilibrium structural model, which corrects for bias caused by correlation in the unobservables associated with market structure and branching activity. We estimate the model using data from 1,882 concentrated rural markets. Our results demonstrate the importance of accounting for market structure and product differentiation, and are consistent with a potential entry-deterring effect of bank branch investments.     

Retail Contracting and Organizational Form: Alternatives to Chain Affiliation in the Motel Industry

Most of the existing empirical literature on franchising investigates the share of company-owned versus franchised establishments within large retail firms. This literature typically has not considered the decision of a business owner to operate an independent business or to become a franchisee. This paper empirically analyzes what determines whether independent ownership or affiliation is observed, using data on the affiliation status of 2,293 motel establishments located throughout the United States. Heterogeneity in the underlying economic environment helps explain affiliation choices at the establishment level. The results also suggest that failure to consider independent establishments may explain the puzzling negative correlation between risk and vertical integration commonly found in the empirical franchising literature .     

Competing bids, target management resistance, and the structure of takeover bids

We examine the structure of initial takeover bids and the frequencyof observing competing bids and target management resistance.We find the use of cash is not consistently correlated withthe frequency of competition or resistance and that the costof acquiring information about a target is associated with thelikelihood of competition and resistance. A high bid premiumappears to deter competing offers and is also associated witha lower likelihood of resistance. Finally, target managementresistance is associated with an increased likelihood of a competingoffer arising and a larger increase in target shareholder wealthbetween the initial public announcement and outcome dates relativeto the not-resisted subsample for both successful and unsuccessfulacquisition proposals.     

Probit Analysis and Economic Education

Spector and Mazzeo assert that ordinary least squares regression analysis has been misused by many economics education researchers. They explain that OLS is inappropriate for the analysis of discrete dependent variables, and they suggest the use of probit analysis instead. They then show how probit analysis can be employed in an economics education research project and compare the results of this approach with the results obtained by using OLS. (Those who want to know more about probit analysis might be interested in a new book, Carlos Daganzo's Multinomial Probit: The Theory and Its Application to Demand Forecasting, published in 1979 by Academic Press, Inc. Also see the bibliography provided by Spector and Mazzeo.)     

Board Composition, Board Effectiveness, and the Observed Form of Takeover Bids

We show that bidding firms consider target board characteristicswhen deciding takeover offer types and initial offer premiums.We study a sample of 436 proposed negotiated mergers and bypassoffers. Firms with individuals holding the titles of both chiefexecutive officer (CEO) and board chair are more likely to receivebypass offers. These offers are more likely to be successfuland generate higher target shareholder gains over the takeoveroffer period. When the target's board is independent, the targetis less likely to receive a high premium and the offer is lesslikely to succeed.