SELECTIVITY,MARKET TIMING,AND RANDOM BETA BEHAVIOR OF MUTUAL FUNDS: A GENERALIZED MODEL

This paper presents a generalized varying parameter model to investigate the performance of mutual funds. The model allows beta nonstationarity to include both market timing and random beta behavior; therefore, it can be regarded as a general case of previous research. Forty-three funds with a wide range of objectives are examined. The generalized varying parameter results indicate that about 30 percent of the funds show selectivity, 19 percent have random betas, and 14 percent indicate significant, yet negative, market timing performance. Therefore, mutual funds, as a group, show no market timing ability. The apparent ability to select undervalued securities, however, seems to conflict with the efficient markets hypothesis.     

Employee empowerment in manufacturing: a study of organisations in the UK

Based on a postal survey and interviews, this paper analyses employee empowerment in the UK manufacturing industry, including how it is pursued and perceived, and the key factors that determine success. Success seems to depend on far-reaching changes in procedures, hierarchies and reward structures. This need to mobilise individual agents and structure reconfirms the agency-structure duality.     

Pure Altruism,Consumer Behavior and Choice Modeling*

An important assumption underlying non‐market valuation is that it is not the environment but the human preference that is valued. This paper attempts to test whether individual consumer behavior is influenced by a purely altruistic motive, examining the attitude of hikers towards the hypothetical removal of the Muju ski resort from the Mount Togyu National Park in South Korea. Data were collected from samples of hikers and skiers who visited the national park. The respondents were forced to consider trade‐offs between the recovery of the lost environmental assets in the Muju ski resort area, skiers’ additional travel time, and willingness‐to‐pay amounts for the hypothetical environmental improvement. It was found that hikers did not take into account skiers’ disutility represented by additional travel time.     

Longevity and the life-cycle of management buy-outs

The longevity debate about buy-outs has hitherto been restricted. By focusing on large highly leveraged transactions, existing research has taken only a partial view of how long buy-outs last and the factors influencing longevity. This paper develops and tests hypotheses concerning the influences on buy-out longevity across the whole spectrum of management buy-out applications. Both quantitative and case study evidence from the U. K. is presented. A heterogeneity view of buy-outs is supported. Tests using quantitative data show that earlier exit is associated with larger buy-outs, and buy-outs arising on privatization from the public sector and from non-U. K. parents. Case study evidence principally supports hypotheses that earlier exit is associated with financing institutions being in a relatively stronger position than management and with more rapidly changing market conditions for the firm.     

An explanation of why shareholders' losses are so large after drug recalls

Recent studies show firms suffering drug recalls experience security losses many times larger than any reasonable measure of their direct cost. We discover that the implied standard deviation of stock returns from the Black-Scholes option pricing model significantly increases after a drug recall. The implied standard deviation provides a good proxy for the stock's ex ante beta. The higher systematic risk after a product recall must raise the discount rate used by investors. After a recall, stock prices are reduced in line with the lower expected future earnings and are further reduced because of a higher discount rate.