A quasi-maximum likelihood method for estimating the parameters of multivariate diffusions

A quasi-maximum likelihood procedure for estimating the parameters of multi-dimensional diffusions is developed in which the transitional density is a multivariate Gaussian density with first and second moments approximating the true moments of the unknown density. For affine drift and diffusion functions, the moments are exactly those of the true transitional density and for nonlinear drift and diffusion functions the approximation is extremely good and is as effective as alternative methods based on likelihood approximations. The estimation procedure generalises to models with latent factors. A conditioning procedure is developed that allows parameter estimation in the absence of proxies.     

Testing the orthodoxies of land degradation policy in Swaziland

This paper explores Swaziland's National Action Programme (NAP) to combat desertification; the country's main strategy for implementing the United Nations Convention to Combat Desertification (UNCCD). It considers whether this policy tackles real problems supported by micro-level scientific evidence and local experiences, or whether it further reinforces popular orthodoxies about land degradation. Data from one case study chiefdom in Swaziland are used to test two key orthodoxies identified within the country's NAP: (1) the presentation of degradation as a neo-Malthusian problem resulting from population pressure and (2) the assumption that the poor are responsible for degradation of their environment, in particular, the over-use of forest areas and the degradation of soils. It is found that diverse rural livelihoods inherently deliver patches of degradation at the micro-level but it is not necessarily population pressure or poor people that cause the degradation. Households with varying assets simultaneously degrade and conserve different parts of the land resource through pursuing different livelihood activities. The data indicate that while the NAP focuses on mythical problems grounded in the orthodoxies, policy attention is directed away from the more serious land degradation issues affecting rural livelihoods. The findings of this study provide a more nuanced understanding of the gaps between land degradation policy, local conservation practice and environmental and livelihood outcomes, and suggest that policymakers need to evaluate more critically the outdated and simplistic degradation orthodoxies on which much current policy is based. Stronger links need to be made between scientific and policymaking communities, while more credence should be given to land users’ own knowledges, perspectives, concepts and categories surrounding issues of soil conservation and degradation. It is suggested that steps need to be taken towards the development of broadly applicable benchmarks and indicators that bring together local and scientific knowledges across levels. Without this, popularised orthodoxies will continue to provide a basis for inappropriate land policy.     

The limits of the wage impact of discrimination

In spite of almost 40 years of active enforcement efforts by the EEOC, as well as the strong intervention by the plaintiff bar, the most popular benchmark by which we measure the influence of prejudice on wages paid to female and minority workers has changed very little. This paper maintains that to a large extent this seeming immunity of discriminatory wage gaps to the legal remedies provided by Title VII results from the mismeasurement of those effects. An alternative to the standard Oaxaca decomposition of the wage gap is offered which allows us to put plausible ranges around the true impact of antidiscrimination laws. Not only does this reduce the residual impact of the discrimination that appears to withstand Title VII remedies, it also suggests that the pre‐Title VII impact of discrimination on wages accounted for little of the gap observed at the time of its passage. Copyright © 2005 John Wiley & Sons, Ltd.     

The role of image in service promotion: focusing on the influence of film on consumer choice within tourism

This paper presents a review and discussion of the role image plays in service promotion and consumer choice in the context of film‐induced tourism. Consumers can be very sensitive to images which are important determinants of what a service customer purchases. In relation to image, the medium of film can have a very influential impact on its audience. Consumers may make purchase choices in a range of areas as a result of what they have seen in the movies. An expanding body of literature suggests that film can influence people's travel decisions and entice them to visit particular destinations they have seen on the cinema screen (reinforced through repeat viewing on video, DVD and television). Tourism is a service industry. Does the image of a destination and how it is represented help overcome some of the challenges of service marketing? Many regions throughout the British Isles have seen their consumer appeal improve because of their links with respective film and television productions. Although they have benefited tourism‐wise from this, in many cases there still has not been enough real support from tourist authorities to this growth phenomenon, and as such, the full potential of film to tap into the consumer psyche has not yet been fully realized. Academic discourse from several disciplines is examined in this communication culminating in a conceptual model of destination enhancement through film‐induced image, featuring the conscious and unconscious communication factors at work on two sets of consumers (film consumers and destination consumers). As a ‘work in progress’, the paper sets the scene for further empirical research in this interesting area of study.     

Leader influences on training effectiveness: motivation and outcome expectation processes

Training effectiveness is a function of trainee characteristics, training design and contextual factors. Social exchanges in the work environment have received less attention compared with other training effectiveness predictors. We focus on the extent to which leaders (through their relationships and exchanges with followers) influence skill transfer, maintenance and generalization. We also examine two intervening processes (training motivation and outcome expectancy). Our findings, based on surveys from 495 employees, argue for the importance of leader–member exchange for training transfer, with training motivation and outcome expectancy as intervening mechanisms.     

Schadenfreude and product failures: the role of product deservingness and product status

ABSTRACT

This article examines the influence of product considerations on the experience of schadenfreude – taking pleasure in the suffering of another consumer. We examine how schadenfreude is affected by the extent to which the person suffering a product failure deserves to own the product and the status of the failed product. This work also explicitly considers how these factors interact with those of the person observing the misfortune. These ideas are tested across three experiments. The results show that high product status increases schadenfreude via its exacerbating effects on envy and that a lack of perceived product deservingness increases schadenfreude via both envy and deservingness. These effects differ based on the corresponding factors of the observer where the observer’s own deservingness and lack of product status are found to exacerbate schadenfreude via envy.     

Managerial perceptions of service-infused IORs in China & India: A discursive view of value co-creation

This paper explores the managerial challenges facing firms seeking to build relationships with other network actors while doing business in foreign markets. By taking a critical perspective on an area of increasing importance in both manufacturing and service sectors, that of value co-creation, the paper explores how managers in different cultural contexts make sense of the notion of ‘value’ in inter-organizational B2B relationships between New Zealand service and service-infused supplier firms and buyers in China and India. From an analysis of the interview-based accounts on both sides of the buyer–seller dyad marked differences emerge regarding value-creation within managers' discourse around partnerships, collaboration and cooperation. Our findings suggest that the Indian manager's discursive use of ‘partnership’ draws on service-dominant logic in viewing this type of interaction as a means for co-creating value; they and their New Zealand suppliers are jointly involved in co-creating value within a service system, creating value-in-use. In contrast, the predominant perspective seen in the discourse of Chinese managers is the use of cooperation as a means of making transactions more cost-effective, or to fill gaps in their supply chains, resulting in the creation of transaction-based, co-production of value, which suggests a value-in-exchange orientation. In both cases, there is repeated reference to more peripheral actors whose efforts result in what we interpret as network value creation, based on their interactions with actors within the buyer–seller dyad.     

Cost of Equity and S&P 500 Index Revisions

We examine how the cost of equity changes when firms are added to or removed from the S&P 500 Index during index revisions. Newly added firms experience a significant decline in the cost of equity, while recently removed firms show a significant increase. Liquidity improves for addition firms and declines for removed firms. Addition firms also experience a decline in shadow cost. Changes in cost of equity for included firms are explained by changes in liquidity, shadow cost, and firm size. Finally, included firms with greater investment opportunities benefit more from the reduction in cost of capital.     

Dual-class share structure and innovation

Using a sample of dual-class firms matched with single-class firms possessing similar antitakeover protection, we find a positive association between disproportionate insider control and patent output, quality, creativity, research and development efficiency, and chief executive officer innovative risk taking. We also find, however, that the positive effects of disproportionate control on innovation are concentrated in financially constrained firms and firms in highly competitive industries, and that the positive effects dissipate within 10 years after the initial public offering. Most important, the positive effect of dual-class structures for innovation is conditional on the presence of innovative insiders in the firm. These findings imply that entrenchment through concentrated control in the hands of uniquely innovative corporate insiders provides a positive environment for innovativeness beyond the entrenchment effects of alternative antitakeover measures.     

The kill programme: an ethnographic study of ‘dirty work’ in a slaughterhouse

It has been argued that ‘dirty work’ is characterised by strong occupational and workgroup cultures. This literature has mainly focused on direct workers, but this article largely attends to indirect ‘dirty’ workers, specifically meat inspectors, through ethnographic research conducted in a UK slaughterhouse. Four arguments are developed; the first is that ‘dirty workers’ may not all display group cohesiveness; indeed, individualisation may be more evident depending upon the technology used, internationalisation and employment conditions. Second, there is complexity and diversity within ‘dirty work’ and even single occupations can contain considerable variety, rendering generalisations problematic. Third, we argue that much greater attention needs to be given to the wider contextual issues affecting ‘dirty work’, specifically changing labour markets, itinerant labour, economic conditions and technologies. Finally, we argue that stigmatised work may become more so if it is equated with the low wage economy and/or undercutting conditions of employment through exploiting migrant labour.