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This article examines the impact of a specific aspect of air quality—visibility, or the ability to clearly see distant objects—on housing values. Our analysis is based on a data set constructed by matching residential housing sales data from the Los Angeles Metropolitan Area for the period 1980 through 1995 with visibility and other air pollution data and other characteristics. We find that visibility differences are capitalized into housing values, producing a measurable hedonic price gradient. The time-series design facilitates an estimate of the demand for visibility that we use to calculate the benefits of changes in visual range.  相似文献   
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Editorial     
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K.S. Larsen 《Futures》2003,35(2):163-167
Relations between rich and poor (across and within countries) appeared in some questions in Images; there were clear differences between what the powerful and the powerless hoped and expected from the future. This is compared with what actually happened and a deeper analysis is made of ‘power’ as an organizing concept. It turned out that the pessimism associated with powerlessness tended to make better predictions.  相似文献   
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The role of entrepreneurs in stimulating growth in the small business economy has received significant interest in the last three decades. This growing interest is prompted, in part, by the government’s assumption that the establishment and expansion of existing small firms could be greatly enhanced by the promotion of entrepreneurial education programmes in colleges and universities. Whilst there has been significant interest in the role, type and effect of entrepreneurs in the economy, few studies have examined the effect of entrepreneurial programmes on the progression of an idea through to commercialisation. This is because such research, whilst seemingly desirable, is problematic. Evidence can be gleaned through the development of suitable conceptual frameworks and methods, to assess the role and impact of entrepreneurial programmes on the commercialisation of products or processes, and the enhancement of entrepreneurial capabilities. To address this problem, the research will examine different approaches and frameworks that have been developed and applied hitherto. The objective of this will be to highlight the difficulties in assessing the motivations, cognitive and behavioural changes of entrepreneurs. Also, the research will demonstrate the need to undertake adequate controls, which illustrate possible improvement in entrepreneurial capabilities, networks, and credibility in comparison to students that embarked on courses without entrepreneurial elements. The process will confine itself to business development within the higher education (HEI) context. The MSEC has as its remit to provide opportunity, education, awareness and training to foster entrepreneurship within science and engineering departments across four universities in Greater Manchester. This setting will provide a unique situation in which to investigate the development of germinal technology businesses from the inception of an idea to the point of incubation, prototype development and investment. There is a requirement to understand the needs of the virgin entrepreneur, possible obstacles to commercialisation and the process of new venture creation. The methodology to be adopted has been identified, and forges new ground on combining positivist and phenomenological paradigms. The multi–paradigm approach supports the use of critical incident technique to reveal greater insights in to the personal and cognitive development of virginal entrepreneurs, the suitability of enterprise programmes to act as catalysts for venture creation, and their role in supporting technology transfer. The research will not only confine itself to examining undergraduate and postgraduate projects within MSEC’s business creation unit, but will also continue to assess the experience of entrepreneurs’ when they leave the programme. The research also documents the economic contribution of the programme, in terms of generation of new technology–based firms and the impact of entrepreneurs joining established small firms. Ultimately the aim is to build a long–term picture of the role of enterprise programmes in HEIs that will inform policy and practice.  相似文献   
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As business-to-business marketing channels become more international in scope, communication in channels occurs among a more diverse set of channel participants from different national cultures. Do such cultural variations influence channel communications and if so, how? This study examines these questions in international business-to-business marketing channels comprised of channel members representing different cultural contexts. The findings show that there is a relationship between culture and channel communication in international channels. This influence stemming from “cultural distance” may have significant implications as business moves into the E-commerce era of Internet-based B2B international channels of distribution.  相似文献   
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The amount of customisation to an enterprise resource planning (ERP) system has always been a major concern in the context of the implementation. This article focuses on the phase of maintenance and presents an empirical study about the relationship between the amount of customising and the resulting support effort. We establish a structural equation modelling model that explains support effort using customisation effort, organisational characteristics and scope of implementation. The findings using data from an ERP provider show that there is a statistically significant effect: with an increasing amount of customisation, the quantity of telephone calls to support increases, as well as the duration of each call.  相似文献   
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