Employer discrimination and market structure: Does more concentration mean more discrimination?

We formalize Gary Becker’s dynamic conjecture that competitive forces drive discriminating employers from the market in the long run, using a dynamic model of a monopolistically competitive industry characterized by sunk costs and sequential entry. An advantage of this formalization is that it demonstrates the importance of the structure of production costs, as well as market power, in explaining the long-run survival of discriminatory firms. In addition, we show that, despite decades of empirical research on this connection, there is no consistent theoretical relationship between the degree of market concentration within an industry and the degree of discrimination. However, we do find an indirect link in which market liberalization has a more pronounced effect in reducing discrimination in more concentrated markets.     

The effect of within‐industry diversification on firm performance: synergy creation,multi‐market contact and market structuration

This paper examines the effect of diversification upon intra‐industry performance. We propose that intra‐industry diversification promises three sets of benefits, which, separately and in combination, provide firms with a competitive advantage: synergies arising from economies of scope; premiums from mutual forbearance enabled by multi‐market competition; and efficiencies derived from market structuration. The additive and integrative effects of the first two have not been explored. The benefits of market structuration remain untheorized and thus untested. The test of our theoretical model in the Canadian general insurance industry indicates that mutual forbearance provides advantage under specified conditions, that market structuration also provides advantages, but that diversification per se does not. Copyright © 2004 John Wiley & Sons, Ltd.     

A Simple Model of Mortgage Insurance

This paper uses a two-period model to analyze the borrower's choice of an optimal time pattern of mortgage payments in a world where future house values are uncertain. Since a decline in values can make the borrower's equity negative, leading to default on the mortgage, lenders in the model will require the purchase of mortgage insurance. The premium on the insurance policy will depend on the riskiness of the mortgage, which in turn depends on the magnitude of the initial mortgage payment. Mortgages with large (small) first payments will carry low (high) insurance premiums. Taking this fact into account, the borrower decides on the optimal riskiness of his mortgage. Borrowers who discount the future heavily choose risky mortgages carrying high insurance premiums, while those who place a higher value on future consumption opt for less risky contracts carrying low (or zero) premiums.     

Market Structure and Hospital Efficiency: Evaluating Potential Effects of Deregulation in a National Health Service

In this article we examine the potential effect of market structure on hospital technical efficiency as a measure of performance controlled by ownership and regulation. This study is relevant to provide an evaluation of the potential effects of recommended and initiated deregulation policies in order to promote market reforms in the context of a European National Health Service. Our goal was reached through three main empirical stages. Firstly, using patient origin data from hospitals in the region of Catalonia in 1990, we estimated geographic hospital markets through the Elzinga–Hogarty approach, based on patient flows. Then we measured the market level of concentration using the Herfindahl–Hirschman index. Secondly, technical and scale efficiency scores for each hospital was obtained specifying a Data Envelopment Analysis. According to the data nearly two-thirds of the hospitals operate under the production frontier with an average efficiency score of 0.841. Finally, the determinants of the efficiency scores were investigated using a censored regression model. Special attention was paid to test the hypothesis that there is an efficiency improvement in more competitive markets. The results suggest that the number of competitors in the market contributes positively to technical efficiency and there is some evidence that the differences in efficiency scores are attributed to several environmental factors such as ownership, market structure and regulation effects.     

The curvilinear relationships between responsive and proactive market orientations and new product performance: A contingent link

Recent research has defined market orientation as two dimensions, responsive and proactive market orientations, and further argued that an inverted U-shaped relationship exists between each of these two market orientation dimensions and new product performance. However, empirical evidence has not confirmed such a nonlinear relationship. This study argues that the curvilinear relationship between the two dimensions of market orientation and new product performance may depend on external environmental characteristics. A total of 107 new product development programs in five high tech industries constitute the analytical sample. Hierarchical regression analysis reveals that under a high level of technological turbulence, responsive market orientation becomes detrimental to new product performance beyond a certain level; the relationship between proactive market orientation and new product performance is an inverted U-shaped under a low level of technological turbulence or competitive intensity. Results also indicate that responsive and proactive market orientations are important determinants of new product performance. These findings sharpen the understanding of the relationship between market orientation and new product performance.     

Do Common Risk Factors in the Returns on Stocks and Bonds Explain Returns on REITs?

The monthly returns on equity and mortgage real estate investment trusts (REITs) are analyzed over the period July 1976 to December 1992. The results indicate that risk premiums on equity REITs are significantly related to risk premiums on a market portfolio of stocks as well as to the returns on mimicking portfolios for size and book-to-market equity factors in common stock returns. Mortgage REIT risk premiums are significantly related to the three stock market factors and two bond market factors in returns. Also, mortgage REIT shares underperform by an average of 6.8% per year.     

Determinants of Entry and Profits in Local Banking Markets

This paper estimates a two equation model of market entry and profits, utilizing data on entry into over 2,000 banking markets over the period 1977--88. The entry equations measure whether entry depends on incumbent firms' profits and other market attributes that reflect the long-term attractiveness of markets for entry. Market profits, assumed to follow a partial-adjustment process, are affected by entry directly and indirectly through market structure. The model also corrects for an unavoidable source of error in market-level profits for the banking industry. The estimates suggest that a competitive process is at work in banking markets that limits the ability of supra-normal profits to persist. Entry is more likely in markets that have high profits, consistent with previous empirical results that market structure adjusts more quickly when profits are supra-normal. Population and population growth are also strong determinants of entry. Entry, in turn, reduces profits in rural markets.     

Risikoprämien im Erdölhandel

Risk premiums are not directly observable, since they are only a part of futures prices. In an efficient market, the historical price at maturity of the futures prices can be taken as an approximation of expected spot price. Therefore, risk premiums are identified as the bias between the historical spot prices at maturity and futures prices with the correspondent maturity. The Brent Futures markets with maturities of four months are examined. The calculated risk premiums are positive and the deviations from the historical spot price are left skewed, which implies that buyers in crude oil markets are risk averse and prudent. The risk premiums have approximately tripled in 2001–2008 to 1991–2000. This is caused either by an increased specific market risk or by inefficient information of market participants.     

上海燃料油期货市场运行效率实证研究

应用协整检验、Granger因果检验、套保比率计算和套保绩效检验等方法,对上海燃料油期货与现货的长期相关关系以及价格发现和套期保值功能的发挥情况进行了定量研究。结果表明,上海燃料油期货与黄埔现货之间具有长期均衡关系,二者之间是相互引导的;上海燃料油期货市场具有良好的价格发现和套期保值功能,可以为企业利用期货市场进行套期保值规避风险提供有效的支持。     

Understanding pastoralists’ dynamic insurance uptake decisions: Evidence from four-year panel data in Ethiopia

Despite the demonstrated benefits of index insurance, its adoption rate remains low in many developing countries. While a growing literature explores the factors associated with insurance uptake, we still know little about its dynamic patterns. Using a unique data set covering four years and six semi-annual sales periods of an index-based livestock insurance (IBLI) product in southern Ethiopia, we examine the dynamics of pastoralists’ demand for IBLI. We find that reduced insurance premiums induce households to purchase IBLI. While a one-shot subsidy can create a price reference point that may reduce the subsequent uptake, we do not find such price-anchoring effects. We also find that overall uptake decision is positively correlated intertemporally, although there is no strong evidence for learning by doing or learning from others. Finally, we show that pastoralists are more likely to purchase IBLI when drought risk is high, consistent with the existence of spatiotemporal adverse selection. We discuss the potential of distributing discount coupons to trigger initial uptake and adjusting premium rates dynamically to avoid spatiotemporal adverse selection as effective policy tools toward sustainable livestock insurance. Overall, our study signifies the importance of an empirical analysis that considers the dynamic demand structure.     

中国西部地区金融发展支持经济增长的实证研究

文章从金融资产结构的角度(包括银行贷款、保险资产以及股票等)对西部地区1985~2010年的金融发展与经济增长的关系进行了实证研究,结论表明:保险市场对经济增长的推动作用不显著;股票市场对西部地区经济的贡献率仅为0.0834;银行贷款显著地促进了西部地区的经济增长,其中短期贷款的贡献最大;从贷款投向来看,工业贷款贡献率最大,其次是农业贷款,最后是第三产业贷款。结合本文实证结论,提出了优化和改善西部地区银行体系的信贷结构、继续增加对西部地区农业的有效资金投入、通过加大对第三产业授信规模来提高第三产业在国民经济中的比重、同时提高第三产业就业吸纳力等政策建议。     

Housing Finance in a Stochastic Economy: Contract Pricing and Choice

An empirical analysis of macroeconomic time series from the mortgage, housing, capital and labor markets is based on life-cycle consumption and mortgage option pricing considerations. Vector autoregression techniques characterize the long-run equilibrium and short-run dynamics of the mortgage market as it relates to the other sectoral markets. A simultaneous-equations model characterizes the partial equilibrium in the differentiated products market for fixed- and adjustablerate mortgage contracts. The empirical results reveal the impacts that market conditions have on mortgage volumes and prices, and they generally support the implications of the consumption and pricing theories.     

Evaluating the effectiveness of inter-regional trade and storage in Malawi’s private sector maize markets

This paper evaluates the effectiveness of the private sector maize marketing system in Malawi using threshold autoregression models. Two dimensions of maize market performance are evaluated: (1) inter-regional trade and spatial price transmission; and (2) storage and seasonal price relationships. In both cases, threshold autoregression models which account for nonlinearities predicted by economic theory are applied. Results indicate that spatial price transmission and seasonal price patterns in private sector maize markets in Malawi are generally consistent with long-run competitive inter-regional trade and storage behavior, and that in most cases shocks to long-run equilibrium are arbitraged away quickly. This suggests the private sector in Malawi is generally doing a good job of transporting maize from surplus to deficit regions and smoothing maize consumption between harvests.     

关于项目竞争力分析的探讨

从总量平衡与目标市场,产品完全成本,竞争策略,经济评价与竞争力分析等四个方面对项目竞争力进行了探讨,提出项目竞争力分析是项目经济评价的重要补充,对提高项目前期评价水平具有重要的意义。     

Agriculture and ISO 14000

Many agricultural firms are now considering the environmental consequences of their activities as a means to obtain a competitive advantage. The shift is highlighted by the significant interest in standardized private codes such as those found in ISO 14000. These standardized codes are characterized by signatory firms voluntarily agreeing to abide by a given set of environmental management principles with monitoring conducted by an outside party. Government policy makers are also interested in the ability of such codes to address environmental concerns related to agriculture. This paper examines the feasibility of ISO 14000 for agricultural producers and the policy issues surrounding its application. The costs to an individual firm largely depend upon the availability of an environmental management system and the extent of the changes required under the system. The potential rewards are related to lower costs from reduced input use or lower premiums and increased revenue from new customers or market premiums. Net benefits to ISO 14001 certification will be greater for producers marketing food products than for firms selling a bulk commodity far removed from final consumption. Policy concerns related to ISO 14000 include providing institutional support for promotion and training, tying environmental regulations to the code, and the lack of public accountability in the setting of standards.     

Market Structure and Market Performance

I review studies of the determinants of market performance in the aircraft, passenger airline, supermarket, liner shipping, and hospital industries, and of mergers and market performance in markets for fast food, soft drinks, and retail gasoline. Common factors are that more competitive market structures accompany better market performance, and that firm conduct and industry-specific factors play independent roles.     

Market Diversion and Market Power: California Eggs

Allegations of price-fixing by US egg producers maintain that the industry’s strategic use of export programs softens competition in the domestic market. This study provides an empirical investigation into these allegations using retail market data from a specific California retail market. Our findings suggest that the antitrust complaints have economic merit, but the deviations from competitive behavior are small.     

Diffusion and competitive relationship of mobile telephone service in Guatemala: An empirical analysis

The purpose of this paper is to analyze the characteristics of diffusion process of mobile telephone service and the competitive relationships between mobile and fixed-line services in Guatemalan telecommunications market. We investigated the best-suited model to explain the diffusion process of mobile telephone in Guatemala by estimating diffusion curves using empirical data. Moreover, we explored affecting factors which characterize the diffusion pattern of mobile telephony in Guatemala through statistical analysis. Finally, in order to understand the effects of competition in the diffusion process of Guatemalan mobile phone service, we attempted to clarify the competitive relationship between mobile and fixed-line services using the Lotka-Volterra model. As a result, the logistic model was found to be the best model for describing the diffusion pattern. Moreover, investment in telecommunications, the subscribers of fixed-line services, and the number of operators in mobile market were found as significant determinants of mobile diffusion process. Results from the Lotka-Volterra model showed that the relationship between mobile and fixed-line services has changed from pure competition to amensalism.     

Who competes with whom? A demand‐based perspective for identifying and representing asymmetric competition

A host of strategic management and marketing issues, including competitive analysis and strategic decision making, hinges on accurately identifying and representing competitive market structures. It is readily acknowledged that competitive market structures are typically asymmetric; namely, one firm may actively compete with another in a given market but not vice versa. However, empirical efforts to assess these competitive asymmetries have been lacking in the strategy literature. We propose a new spatial methodology to identify and represent asymmetric competitive market structures. Specifically, we devise a new stochastic multidimensional scaling procedure that is calibrated from actual consumer consideration/choice sets to estimate and uncover competitive asymmetries. The proposed methodology can be effectively employed in the analysis of appropriate data from either demand‐ or supply‐side approaches to assess competitive market structure. We illustrate our proposed methodology with survey data collected from two different commercial applications: one from the U.S. luxury automobile market and the other from the U.S. portable telephone market. We contrast the findings of the proposed methodology against traditional symmetric approaches for identifying and representing competitive market structures, and discuss the respective strategic insights. Copyright © 2005 John Wiley & Sons, Ltd.     

Product Market Volatility and the Adjustment of Earnings to Risk

This investigation of compensating wage differentials uses an instrument for the risk of unemployment, namely, the industry-specific shipment volatility, to address some empirical anomalies found in the literature. I find that risk premiums for the risk of unemployment range from 8.5 to 19 percent when the covariance between shipment volatility and total manufacturing employment is taken into account. Covariance risk requires positive premiums that range from 1.4 to 14 percent depending on the specification.