Seasonality in industry specific indices

This study examines seaonality in three industry specific stock market indices; the Standard and Poor's (S&P) 20 Transportation, the S&P 40 Utilities, and the S&P 40 Financial. The results support the existence of a weekend effect in the transportation index. There is no evidence of a weekend effect in the utilities and financial indices. Both the transportation and financial indices exhibit the January effect. The utilities index, however, shows no evidence of a January effect. The finding of a weekend and a January effect at the industry level is significant because select mutual funds enhance the ability of investors to capitalize on such anomalies.     

Comecon, trade and the west :

Summary Bivariate distributions, which may be of special relevance to the lifetimes of two components of a system, are derived using the following approach. As the two components are part of one system and therefore exposed to similar conditions of service, there will be similarity between their lifetimes that is not shared by components belonging to different systems. The lifetime distribution for a given system is assumed to be Gamma in form (this includes the exponential as a special case; extension to the Stacey distribution, which includes the Weibull distribution, is straightforward). The scale parameter of this distribution is itself a random variable, with a Gamma distribution. We thus obtain what might be termed a compound Gamma-Gamma bivariate distribution. The cumulative distribution function of this may be expressed in terms of one of the double hypergeometric functions of Appell.Generalised hypergeometric functions play an important part in this paper, and one of Saran's triple hypergeometric functions is obtained when generalising the above model to permit the scale parameters of the distributions for the two components to be correlated, rather than identical.Work started while the author was with the Transport Studies Group, University College London.     

Compound gamma bivariate distributions

Summary Bivariate distributions, which may be of special relevance to the lifetimes of two components of a system, are derived using the following approach. As the two components are part of one system and therefore exposed to similar conditions of service, there will be similarity between their lifetimes that is not shared by components belonging to different systems. The lifetime distribution for a given system is assumed to be Gamma in form (this includes the exponential as a special case; extension to the Stacey distribution, which includes the Weibull distribution, is straightforward). The scale parameter of this distribution is itself a random variable, with a Gamma distribution. We thus obtain what might be termed a compound Gamma-Gamma bivariate distribution. The cumulative distribution function of this may be expressed in terms of one of the double hypergeometric functions of Appell.Generalised hypergeometric functions play an important part in this paper, and one of Saran's triple hypergeometric functions is obtained when generalising the above model to permit the scale parameters of the distributions for the two components to be correlated, rather than identical.Work started while the author was with the Transport Studies Group, University College London.     

Price-cost margins and manufacturing industry structure: The case of a small economy with bilateral trade in manufactured goods

The majority of empirical tests of the structure-performance model have examined the relationship between performance and domestic industry structure, although in recent work aspects of foreign competition have been included. In the context of a Republic of Ireland study, this paper attempts to extend the model by redefining the demand growth and import share variables and by including a measure of the relative competitiveness of foreign suppliers vis-á-vis domestic firms.The empirical results lend support to the proposed extension and suggest that in a small economy foreign competition has a more important impact on industry performance than competition among domestic firms.     

The Depositor Behind the Discipline: A Micro-Level Case Study of Hamilton Bank

Though uninsured depositors are recognized as a source of market discipline, the possible disciplinary effect of decisions made by fully insured depositors have gone largely unexamined. Using proprietary administrative deposit data at the account level, this paper analyzes depositor behavior at a recently failed institution. The results suggest that although uninsured deposits exited at a greater rate than insured deposits, the vast majority of deposits withdrawn were fully insured. Among types of deposit accounts, the rates of withdrawal for fully insured individual, joint, and trust accounts were relatively high. Uninsured business account owners were highly sensitive to the bank's deteriorating condition. In contrast, owners of uninsured individual retirement accounts effectively exerted no market discipline. The opinions expressed in this paper are ours and do not necessarily reflect those of the Federal Deposit Insurance Corporation. All errors are our own.     

Ethics in the Czech Transformation Process

Despite the social, economic and ethical problems facing government in the Czech Republic, there are positive signs of a growing concern for ethical business, including the development of codes of conduct and a striking example of new corporate social responsibility. Dr Bohatá is a member of the Economics Institute of the Academy of Sciences, Politickych Veznu 7, 111 21 Prague 1, and an Associate Editor of this Review.