Why managers divest—Evidence from New Zealand's largest companies

Chief Executives from New Zealand's largest companies were surveyed to distinguish divesting and nondivesting companies, and to identify the relative importance of the factors and motives which led to the divestment of 208 business units in the period 1985 through 1990. The divesting companies were considerably larger and faster growing than nondivestors. The typical divestment was motivated by the need to convert unattractive assets into liquid form which could then be held to strengthen the balance sheet, or reinvested in either the core business or new areas.     

Optimal dynamic reinsurance with dependent risks: variance premium principle

In this paper, we consider the optimal proportional reinsurance strategy in a risk model with two dependent classes of insurance business, where the two claim number processes are correlated through a common shock component. Under the criterion of maximizing the expected exponential utility with the variance premium principle, we adopt a nonstandard approach to examining the existence and uniqueness of the optimal reinsurance strategy. Using the technique of stochastic control theory, closed-form expressions for the optimal strategy and the value function are derived for the compound Poisson risk model as well as for the Brownian motion risk model. From the numerical examples, we see that the optimal results for the compound Poisson risk model are very different from those for the diffusion model. The former depends not only on the safety loading, time, and the interest rate, but also on the claim size distributions and the claim number processes, while the latter depends only on the safety loading, time, and the interest rate.     

Labour Market Adjustments to Exchange Rate Fluctuations: Evidence from Canadian Manufacturing Industries

This paper provides some of the first empirical evidence on labour market adjustments to exchange rate movements in Canadian manufacturing industries. Controlling for endogeneity using generalized method of moments estimation, it is found that during the 1981–1997 period, exchange movements have a substantial impact on labour input and that this impact has grown over time as the manufacturing industries have become more exposed to trade. In contrast, the exchange rate effect on real wages is estimated to be virtually zero for all manufacturing industries.

Energy Saving and Tourism Sustainability: Solar Control Window Film in Hotel Rooms

This paper investigates solar control film as an energy saver in the fast growing hotel sector in southern China. It investigates claims made for this low-cost retrofitted material in hotel rooms, calibrating reductions in solar gain in summer. It provides reliable and independent data about the performance and economic viability of solar control film in real hotel environments. The study found that, by limiting solar gain, the film helps limit tourism's impact on global warming and climate change. The paper also foreshadows new technical glazing developments.     

Pan-European Advertising: Think Europe—Act Local

Changes in Europe resulting from the unification of EC countries and the accessibility of new Eastern European markets have fundamentally altered the trading environment in which advertising agencies operate. As the advertising industry attempts to get to grips with legislative and media changes, agencies are working hard to create alliances and develop networks which encompass markets in which they did not traditionally have a presence. This article draws on a combination of quantitative and qualitative information collected from secondary sources and extended personal interviews with key agency personnel, advertisers and representatives from the UK's Advertising Association and The Advertising Standards Authority. The objective is to show how the advertising industry and agencies are continuing to gear up to meeting the new demands of the Europeanized market.     

Entrepreneurship,Innovation and Economic Growth: Evidence from GEM data

Studies on the impact of technological innovation on growth have been largely mute on the role ofnew firm formation. Using cross-sectional data on the 37 countries participating in GEM 2002, this paper uses an augmented Cobb–Douglas production to explore firm formation and technological innovation as separate determinants of growth. One area of interest is the contrast between different types of entrepreneurial activities as measured using GEM Total Entrepreneurial Activity (TEA) rates – high growth potential TEA, necessity TEA, opportunity TEA and overall TEA. Of the four types of entrepreneurship, only high growth potential entrepreneurship is found to have a significant impact on economic growth. This finding is consistent with extant findings in the literature that it is fast growing new firms, not new firms in general, that accounted for most of the new job creation by small and medium enterprises in advanced countries.     

Chinese lessons: state-owned enterprises and the regulation of foreign investment in Canada

A recent influx of Asian investment is changing the character of the Canadian oil and gas industry and reviving old debates on the regulation of foreign investment. Particular attention has been placed on investment by state-owned enterprises (SOEs), driven in part by public suspicion about investment from China, which has been the largest source of SOE capital flows to Canada. Recent amendments to the Investment Canada Act have made SOE investment more difficult and have raised questions about the country’s attractiveness as an investment destination. This paper makes the case for non-discrimination of SOEs in the investment review process. In the context of a policy framework that is fundamentally supportive of inward foreign direct investment (FDI), the Canadian government does not require a set of redundant measures to protect against the relatively low risk of undesirable investment.     

Secondary upwelling instabilities developed in high Rayleigh number convection: Possible applications to hot spots

We have conducted numerical experiments for mantle convection in an axisymmetrical spherical-shell geometry from Rayleigh numbers ranging from three million to 10 billion for a purely basal heating configuration. We focus on the development of secondary instabilities developed from plumes and compare them with laboratory experiments by Skilbeck and Whitehead (1978) and Whitehead, (1982). For Rayleigh numbers between around thirty million to one billion, a string of these secondary instabilities can develop from a single plume. Analysis of the spectrum of wavelength associated with the fold instabilities shows that there is a window in the Rayleigh number between around ten million and one bilion where these secondary folding instabilities would develop. These results, when applied to the upper mantle, may explain the formation of hot-spots in a turbulently convecting upper-mantle with a Rayleigh number greater than ten million.     

Small sample behaviour of some nonparametric multi-sample location tests in the presence of dispersion differences

This paper describes the small and moderate sample behaviour of three studentized non-parametric statistics by Sen and a modified Wilcoxon statistic by Potthoff for testing the equality of location parameters in the presence of dispersion differences. Based on the agreement between the asymptotic and small sample distributions of the statistics as well as a comparison of their power under heteroscedasticity, the studentized Wilcoxon and the studentized Brown and Mood tests arc preferred in the two-sample and c-sample situations, respectively.