Culture, infrastructure and international health benefits delivery

When selecting a health insurance carrier for international employees, it is advantageous to recognize that valid assumptions made when selecting domestic benefits simply do not apply in the international realm and can lead to costly errors. This article examines some scenarios and cultural anomalies that invalidate commonly accepted domestic health insurance practices. It explores strategies for simplifying benefit design, providing access to quality care abroad, assessing costs, minimizing overseas risks and understanding the cultural impact on health care delivery.     

Tail dependence analysis of stock markets using extreme value theory

Financial risk modelling frequently uses the assumption of a normal distribution when considering the return series which is inefficient if the data is not normally distributed or if it exhibits extreme tails. Estimation of tail dependence between financial assets plays a vital role in various aspects of financial risk modelling including portfolio theory and hedging amongst applications. Extreme Value Theory (EVT) provides well established methods for considering univariate and multivariate tail distributions which are useful for forecasting financial risk or modelling the tail dependence of risky assets. The empirical analysis in this article uses nonparametric measures based on bivariate EVT to investigate asymptotic dependence and estimate the degree of tail dependence of the ASX-All Ordinaries daily returns with four other international markets, viz., the S&P-500, Nikkei-225, DAX-30 and Heng-Seng for both extreme right and left tails of the return distribution. It is investigated whether the asymptotic dependence between these markets is related to the heteroscedasticity present in the logarithmic return series using GARCH filters. The empirical evidence shows that the asymptotic extreme tail dependence between stock markets does not necessarily exist and rather can be associated with the heteroscedasticity present in the financial time series of the various stock markets.     

Estimation and policy implications of rental housing demand

The demand for rental housing using the Annual Housing Survey SMSA sample for 1977 is estimated. The principal determinants of rental housing demand, namely housing price and permanent/transitory income, are computed through spatially varying hedonic price techniques and instrumental variables methods (relating to human and nonhuman capital), respectively. Based on the demand estimation results, impacts of hypothetical cash and rent subsidy programs are analyzed in terms of “housing” and “welfare” effects. It is found that a rent subsidy achieves considerably larger effects than does a cash subsidy.     

The London Business School Gower Publishing

The worldwide monetary tightening, which was necessary to contain the inflationary effects of last year's cyclical upturn, is close to having run its course. The boom is giving way to a period of slower but more sustainable growth, while the distribution and structure of demand has turned out to be more favourable than could have been anticipated. The US economy has successfully slowed (but recession seems unlikely), whilst Japan and Europe are still expanding rapidly. The world economy thus continues to grow at a rate of around 2.75 per cent, allowing modest reductions in international current account imbalances. The impact of interest rates has been felt mainly by consumers and in the housing market, and has had only a limited effect on investment and trade. So demand has been reduced but not at the expense of a capacity expansion which will, through productivity gains, dampen inflationary pressures. We expect world inflation to fall slowly front a little above 4 per cent currently to around 3 per cent by 1992. This is above the declared objectives of policy makers but is as close to the hoped-for soft landing as may be achievable.     

On the efficiency of the UK rubber market

This paper seeks to establish whether the efficient markets theory can be applied to the London Rubber Market by analysing the price changes observed in that market for daily cash and future price series during the periods January 1975 to June 1983, and January 1980 to May 1983 respectively. The analysis features an examination of the return distributions and parametric, non-parametric, and economic tests based on auto-correlation coefficients, runs, and filter tests. The results support the hypothesis of weak-form efficiency.     

Shifting responsibility to workers: the future of retirement adequacy in the United States

While many 401(k) participants at large companies can expect replacement of nearly 100% of preretirement income, not all workers participate in their 401(k) plan. Moreover, the authors show that even among participants, the extent of retirement preparedness depends on defined benefit (DB) plan coverage and retiree medical benefit generosity. Given recent trends in the elimination of DB plans and retiree medical subsidies and the voluntary nature of 401(k) participation, retirement income responsibility is increasingly shifting to workers. The authors discuss how employers might help workers meet their retirement income needs in this changing environment.