Production-location decision and free entry oligopoly: A correction

This paper shows that there is no interior solution in Mai–Hwang's 1992 oligopolistic location model with free entry when the production function exhibits constant or decreasing returns to scale. The comparative static results of the impact of a demand change on the location decision only apply to the case where the production function exhibits increasing returns to scale. It re-examines the impact of a demand change on the location decision of an oligopolistic firm and corrects the propositions derived by [C.C. Mai, H. Hwang, Production-location decision and free entry oligopoly, Journal of Urban Economics 33 (1992) 252–271. Reprinted in: M.L. Greenhut, G. Norman (Eds.), The Economics of Location, vol. I: Location Theory, Edward Elgar, Aldershot, 1995].     

Comment: further sufficient conditions for an inverse relationship between productivity and employment

Extant empirical studies document that productivity gains due to technological progress often lead to reductions in employment. This paper rationalizes the stated empirical finding within the context of the theory of the competitive firm under price uncertainty. We show that technological progress affects employment adversely if the firm’s coefficient of relative risk aversion is no less than unity and its production technology exhibits non-decreasing returns to scale. On the other hand, technological progress unambiguously increases output if the firm’s preference has non-increasing absolute risk aversion.     

Rate of return analysis and economies of scale in higher education

This paper presents the results of a study of the rate of return on undergraduate education at the University of Bradford, United Kingdom, and compares them with returns calculated independently for the U.K. university system as a whole. Rates of return are measured for separate undergraduate courses and considerable variation is shown, courses in science and technology generally having lower return because of their higher costs. Private returns to the individual graduate are shown to be substantially greater than those to society as a whole. The government's return, in the form of increased tax receipts is shown to be positive. Further results demonstrate increasing marginal rates of return to society as a result of the economies of scale associated with the expansion of enrolment planned for the decade 1971–1981. The problems involved in projecting rates of return into the future are considered.The paper is directed to teachers and students of the economics of education.     

Why firms adopt empowerment practices and how such practices affect firm performance? A transaction cost-exchange perspective

Complementing the current management literature's focus on the value-creation side of empowerment practices, this paper offers a transaction cost-exchange perspective to explain why firms adopt empowerment practices and how such practices affect firm performance. Specifically, we theorize how performance ambiguity and human asset specificity, two major characteristics of employee-employer exchange, shape firms' decisions to adopt empowerment practices, both independently and interactively. Our model also develops a contingency perspective of how empowerment practices affect firm performance by delineating the moderating role of empowerment practices in the relationship between employee-employer exchange characteristics and firm performance.     

Bayesian limited-information analysis of nonlinear simultaneous equations systems

This paper presents a Bayesian limited-information estimation method that can be used to estimate a single nonlinear equation that forms part of a system of simultaneous equations. The method can be looked upon as the Bayesian counterpart of Amemiya's nonlinear limited-information maximum-likelihood estimator as well as a generalization of Drèze's Bayesian limited-information estimator for linear simultaneous equations systems. The method is illustrated by applying it to the problem of estimating a CES-production function which forms part of a complete model of firm behavior.     

A multiproduct Symmetric Generalized McFadden cost function

This paper introduces a flexible multiproduct cost function that permits zero values of one or more of the outputs and can impose restrictions quite easily, if not automatically satisfied, to ensure global concavity property. It satisfies linear homogeneity (in prices) property and is flexible in the output space. Thus the function is ideal for estimating, for example, economies of scope, cost complementarity, product-specific returns to scale, etc., without worrying about zero values of output(s) and extrapolations to points far from the point of approximation. As an empirical application, we use panel data (1978–1985) on 12 Finnish foundry plants to estimate technical progress, overall returns to scale, product-specific returns to scale and economies of scope.     

Managerial economics and operating beta

We model a firm's unlevered beta in terms of elementary microeconomic variables. The source of uncertainty is a shock to demand. A firm decides on capital before the shock, and on labor, output, and price after the shock. Some insights are: (1) with decreasing returns to scale of production, beta has an inverse relation with price elasticity of demand, given the income elasticity of demand; (2) beta has a direct relation with the firm's returns to scale of production; (3) due to the impact of operating leverage, beta has an inverse relation with industry concentration; and (4) for a given returns to scale, beta has a direct relation with the capital–labor ratio that strengthens as industry concentration decreases. Copyright © 2011 John Wiley & Sons, Ltd.     

Existence of competitive equilibrium under financial constraints and increasing returns

This paper studies a ‘factor cost in advance’ model with increasing returns in production. In the model both partial equilibrium and general equilibrium may exist since working capital of firms limit their input demand. We provide a sufficient condition for the existence of partial equilibrium of a firm operating on a non-convex choice set. Furthermore we establish the existence and uniqueness of competitive equilibrium in the special case of logarithmic utility.     

Rehabilitation decisions in rental housing: An empirical analysis

Housing policy-makers show increased interest in encouraging rehabilitation of the existing housing stock. But little is known about what factors influence the decision to invest, particularly in rental housing, making policy design difficult. This paper presents an empirical analysis of individual landlords' housing rehabilitation decisions in one housing market. The analysis tests hypotheses about the impacts of detailed neighborhood, structure, and site characteristics on each owner's investment activity. Findings support the general hypothesis that economic returns to investment have a major effect on rehabilitation decisions, identify some other important circumstances, and suggest which among many specific policy levers should be effective.     

Simulation study of a closed-loop job shop

This study investigates the behavior of a job shop depicted as an integral component of a firm. A market places demands for the firm's products by dynamically evaluating the organization's quoted delivery times and actual delivery performance. The closed-loop model simulated in this study is described and the salient research results are reported. These experimental outcomes suggest that other conventional open-loop job shop studies tend to neglect important interactions with factors external to the shop itself.     

Environmental regulation and optimal investment behavior: A micro-economic analysis

This paper develops a simple optimal control model of the firm's investment decisions in the presence of environmental restrictions. The firm is assumed to jointly decide the optimal levels of gross investment, scrappage of capital, and maintenance expenditures. The results of the model indicate that all investment decisions, including both abatement equipment and productive capital, are affected by the manner in which environmental regulations are designed. Moreover, these impacts can be further altered if other unrelated regulations, such as rate base regulation, are concurrently imposed on the firm.     

Economic efficiency of multi-product structure: the evidence from Korean housebuilding firms

The Korean housebuilding industry has been subject to structural changes since the 1980s. One of the key features is that housebuilding firms have become diversified into a range of businesses and as a result display multi-product structure. This paper examines the efficiency of the multi-product structure of Korean housebuilding firms. For the analysis, translog cost functions were estimated using data for 201 building firms for the 3 years 1993–1995. The empirical results indicate that medium-size building firms enjoy increasing returns to scale, whereas large firms experience constant returns to scale. Korean building firms exhibit significant economies of scope in their diversification activities. Large firms have the greatest economies of scope. These results are consistent with cost efficiency for the multi-product structure of Korean housebuilding firms. The estimated optimum scale suggests that many large firms should expand only through diversification.     

The Relationship Between Stock Market Returns and Technical Efficiency Innovations: Evidence from the US Airline Industry

This paper analyzes the association between two firm performance measures: stock market returns and relative technical efficiency. Using linear programming techniques (Data Envelopment Analysis and Free Disposal Hull), technical efficiencies are calculated for a panel of eleven US airlines observed quarterly from 1970–1990. A relationship, between efficiency news in a quarter and stock market performance in the following two months, is found. A risky arbitrage portfolio strategy, of buying firms with the most positive efficiency news and short-selling those with the worst news during this time frame, results in zero beta risk yet yields annual returns of 17% and 18% for the two methodologies.     

Differentiating employment prospects by industry and returns to job search in metropolitan areas

The role of differentiating employment prospects by the industry of the employer in the job seeker's calculation of the returns to search is analyzed. It is demonstrated that returns to search can vary systematically between metropolitan areas because of differing mixes of industry employment; it is argued that an increase in a measure of dispersion in the industry mix will tend to raise returns to job search. To test this hypothesis, cross sections of census data on unemployment rates of male experienced workers in each of the seven major occupational groups were analyzed. Statistically significant regression equations were obtained for three occupational groups (craftsmen, nonfarm laborers, and operatives); in all these cases the results supported the hypothesis of the paper.     

International acquisitions in the united states: Evidence from returns to foreign bidders

This paper provides evidence on the minimally explored topic of abnormal returns earned by stockholders of foreign bidders seeking to acquire a target firm in the USA. Four sources of influence on abnormal returns are identified: changes in net wealth of the bidder associated with changes in exchange rates; possible value-destroying managerial discretionary behavior by bidders with excess cash flows, as suggested by Jensen; comparative advantages for foreign bidders domiciled in relatively favorable tax jurisdictions; ownership status of the target, i.e. whether the target is an entire firm and whether it involves divested assets. The study includes 77 firms from 10 countries. The results show that stockholders of foreign bidders earn significant, negative abnormal returns surrounding the announcement of an acquisition in the USA. These abnormal returns become increasingly negative over the 15 days after the announcement of the acquisition, indicating that more information about the acquisition is revealed to investors subsequent to the initial announcement. Cross-sectional regressions indicate that relative exchange rates and cash positions explain variation in abnormal returns. A decline in the value of the dollar increases abnormal returns for the foreign bidder, thus supporting the net wealth hypothesis. The results also show that cash-rich foreign firms tend to enjoy higher abnormal returns when making acquisitions in the USA. The result provides support for the Froot and Stein cash-constrained hypothesis rather than for Jensen's free-cash-flow theory.     

Convergence to symmetry in dynamic strategic models of R&D: The undiscounted case

Will R&D increase or decrease the asymmetry between firms over time? We examine this issue in the context of a dynamic, alternate-move duopoly model of non-cooperative R&D. The asymmetry we consider is with respect to the initial stocks of technological knowledge which provides one firm a greater potential for current and future profits in the product market. Utilizing a value loss process constructed from the Optimality Equation of dynamic programming, we show that for the undiscounted case the asymmetry between the firms disappears over time. We obtain this convergence-to-symmetry result by imparting a temporal character to R&D through the notion that R&D investment cannot be changed instantaneously, by allowing research externalities, complementarity or substitutability between own and appropriated R&D, and either increasing, decreasing or constant returns to scale in the production of technical knowledge from own and rival R&D.     

PATENTS,R&D,AND TECHNOLOGICAL SPILLOVERS AT THE FIRM LEVEL: SOME EVIDENCE FROM ECONOMETRIC COUNT MODELS FOR PANEL DATA

This paper analyses the relationship between the main determinants of technological activity and patent applications. To this end, an original panel of 181 international manufacturing firms investing substantial amounts in R&D during the late 1980s has been constructed. The number of patent applications by firms is explained by current and lagged levels of R&D expenditures and technological spillovers. Technological and geographical opportunities are also taken into account as additional determinants. In order to examine this relationship, several econometric models for count panel data are estimated. These models deal with the discrete nature of patents and firm specific unobservables arising from the panel data context. The main findings of the paper are first, a high sensitivity of results to the specification of patent distribution. Second, the estimates of the preferred GMM panel data method suggest decreasing returns to scale in technological activity and finally a positive impact of technological spillovers on firm's own innovation. © 1997 John Wiley & Sons, Ltd.