An Empirical Investigation of the Arbitrage Pricing Theory

Empirical tests are reported for Ross' [48] arbitrage theory of asset pricing. Using data for individual equities during the 1962–72 period, at least three and probably four priced factors are found in the generating process of returns. The theory is supported in that estimated expected returns depend on estimated factor loadings, and variables such as the own standard deviation, though highly correlated (simply) with estimated expected returns, do not add any further explanatory power to that of the factor loadings.     

GOVERNANCE AND VERTICAL INTEGRATION IN TEAM SPORTS

Antitrust law distinguishes vertical and horizontal restraints. A horizontal restraint is one which exists between competing firms supplying rival products in a market, and a vertical restraint is one which exists between firms that jointly contribute to supplying a particular product in a market. Horizontal agreements receive much closer antitrust scrutiny because they often enable firms to limit competition at the expense of consumers, while vertical restraints may be legal or illegal depending on whether they tend to enhance or reduce competition or the exploitation of market power. This paper argues that there are important vertical restraints that operate in sports leagues which have been mostly neglected in the literature but have a significant impact. We focus on intraleague restraints, where member clubs of a league agree to control the organization of league competition, and interleague restraints, where horizontal agreement such as the Reserve Clause relies on agreements not to compete for players competing in senior or junior leagues. ( JEL L83, L42, L44)     

Local Consumer Information Systems for Services: A Test

This paper reports on a survey of consumers' experiences with local services firms that was conducted by the Montgomery County, Maryland Office of Consumer Affairs and supported by an FTC grant. Over 1,200 individuals evaluated auto repair, heating and air conditioning, home remodeling, roofing, and insulation contracting firms on three dimensions: satisfaction with work performed, price in relation to quality, and strength of recommendation. Results for the heating and air conditioning category were published and widely disseminated.     

有效的成本管理

本文所述的案例公司如今已不存在,成为金融危机的牺牲品。 因果：业绩与成本 案例公司是一家大型跨国集团的子公司,业务是根据订单来组装电子元件。该公司的成本波动很大,员工都是按月付薪的固定员工,因此,其利润水平取决于销售额。该公司的销售由一个跨国销售团队负责,但他们常常忽略这个小规模的子公司。当陷入经济衰退时,集团决定将其部分生产转移到欧洲去,剩下的生产外包出去以降低固定成本。     

The Price Impact and Survival of Irrational Traders

Milton Friedman argued that irrational traders will consistently lose money, will not survive, and, therefore, cannot influence long‐run asset prices. Since his work, survival and price impact have been assumed to be the same. In this paper, we demonstrate that survival and price impact are two independent concepts. The price impact of irrational traders does not rely on their long‐run survival, and they can have a significant impact on asset prices even when their wealth becomes negligible. We also show that irrational traders' portfolio policies can deviate from their limits long after the price process approaches its long‐run limit.     

COMPETITION POLICY FOR DEVELOPING COUNTRIES: A LONG-RUN, ENTRY-BASED APPROACH

This paper describes key aspects of a long-run, entry-based approach to the design of competition policy for developing countries. A competition policy with the sole purpose of mitigating governmental, natural, and artificial barriers to entry best serves the goals of promoting the competitive process and fostering democracy. Freedom of entry is the sine qua non of the competitive process. Freedom of entry promotes the development of efficient, innovative firms capable of competing in international markets and ensures that market reforms will enhance social welfare.     

A Re-examination of Traditional Hypotheses about the Term Structure of Interest Rates

The term structure of interest rates is an important subject to economists, and has a long history of traditions. This paper re-examines many of these traditional hypotheses while employing recent advances in the theory of valuation and contingent claims. We show how the Expectations Hypothesis and the Preferred Habitat Theory must be reformulated if they are to obtain in a continuous-time, rational-expectations equilibrium. We also modify the linear adaptive interest rate forecasting models, which are common to the macroeconomic literature, so that they will be consistent in the same framework.     

IS IT HARDER TO SOAR WITH EAGLES WHEN YOU WORK WITH TURKEYS?*

Lucas (1988) modelled the productivity of workers as being a function not only of their own human capital but the human capital of the people with whom they work. Using individual data, this paper investigates whether there are such human‐capital externalities. In particular, we look at the research output of academic economists, and ask whether research‐output productivity is affected not just by individual human‐capital factors, and institutional and funding factors, but additionally by productivity of those in the same academic department. Our findings are also of relevance to the literature on peer‐group effects and the ‘Bell Curve’ debate.