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Lorraine Dearden Steven McIntosh Michal Myck & Anna Vignoles 《Bulletin of economic research》2002,54(3):249-274
This paper uses data from the 1991 sweep of the National Child Development Study (NCDS) and the 1998 Labour Force Survey (LFS) to provide a comprehensive analysis of the labour market returns to academic and vocational qualifications. The results show that the wage premia from academic qualifications are typically higher than from vocational qualifications. However, this gap is reduced somewhat, when we control for the amount of time taken to acquire different qualifications. This is particularly important for vocational courses, which generally take shorter time periods to complete. In the paper we also investigate how returns vary by gender, subsequent qualifications, and the natural ability of individuals. Finally, by comparing the NCDS results with those from the LFS, we estimate the bias that can result from not controlling for factors such as ability, family background and measurement error. The results reveal that the estimated returns in the NCDS equations controlling for ability, family background and measurement error are similar to the simple OLS estimates obtained with the LFS, which do not control for these factors. This suggests that the biases generally offset one another. 相似文献
3.
Björn Nykvist Author Vitae Lorraine Whitmarsh Author Vitae 《Technological Forecasting and Social Change》2008,75(9):1373-1387
A wide range of intractable problems such as polluting emissions, noise, accidents, resource depletion, and inaccessibility of amenities are associated with the current transport regime. Given the slow movement towards a more sustainable mobility system, more radical, systemic innovation - a ‘transition’ - is required. Broadly speaking, this may be achieved via three routes: technological change, modal shift, and reduced travel demand. Drawing on concepts from the transitions literature (e.g., [Geels, F.W.: Technological Transitions and System Innovations: A Co-evolutionary and Socio-Technical Analysis, Edward Elgar, Cheltenham, 2005.]), we conceptualise each of these routes as a bundle of niche activities within an Area of Innovation, deviating to differing degrees from the current mobility ‘regime’. We present empirical evidence and indications of ongoing development of niches in these three areas within the UK and Sweden, and explore processes of co-evolution, divergence and tension within and between niches. Findings indicate recent market penetration of novel transport technologies, more advanced than modal shift or demand management activities; however, different transport technologies are more successful in each country. We also identify examples of a close relationship between development of radical vehicle/fuel technologies and provision of mobility services; and information technology as a driver in all three areas of innovation. We conclude that future innovation in transport depends on diversity, hybridisation, and co-evolution of niches. Finally, policy implications are discussed. 相似文献
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Aid conditional on the purchase of an imported capital good increases the supply of, and demand for, the good. Examining the effects of tied aid on capital accumulation, the current account, and welfare, we find that two resultant conflicting forces render the price of the capital good indeterminate. If the demand pressure is larger than the supply response, the capital stock increases at the expense of the current account and welfare improves. Alternatively, if the demand pressure is less than the supply response, capital is reduced. This may be detrimental to welfare. JEL Classification: F35, F11
Contingentement à l'importation, aide liée, accumulation et bien-être. Une aide conditionnelle accordée pour l'achat d'un bien importé accroît l'offre et la demande de ce bien. En examinant les effets d'une aide liée de ce type sur l'accumulation du capital, le compte courant et le niveau de bien-être, les auteurs montrent que deux forces contradictoires rendent le prix du bien capital indéterminé. Si la pression sur la demande est plus grande que la réponse du côté de l'offfre, le stock de capital s'accroît au détriment du compte courant, et le niveau de bien-être s'accroît. D'autre part, si la pression en provenance de la demande est moindre que la réponse du côté de l'offre, le stock de capital est réduit. Cela peut entraîner une réduction du niveau de bien-être. 相似文献
Contingentement à l'importation, aide liée, accumulation et bien-être. Une aide conditionnelle accordée pour l'achat d'un bien importé accroît l'offre et la demande de ce bien. En examinant les effets d'une aide liée de ce type sur l'accumulation du capital, le compte courant et le niveau de bien-être, les auteurs montrent que deux forces contradictoires rendent le prix du bien capital indéterminé. Si la pression sur la demande est plus grande que la réponse du côté de l'offfre, le stock de capital s'accroît au détriment du compte courant, et le niveau de bien-être s'accroît. D'autre part, si la pression en provenance de la demande est moindre que la réponse du côté de l'offre, le stock de capital est réduit. Cela peut entraîner une réduction du niveau de bien-être. 相似文献
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Jie Li Xingtang Wang Baomin Dong Eden S. H. Yu 《Review of International Economics》2019,27(4):1108-1125
Would a foreign firm’s consumer‐oriented corporate social responsibility (CSR) activities be rewarded by an importing country’s voluntary tariff reduction? The current paper addresses this question in an import‐competing duopoly model with vertical product differentiation. It is shown that the tariff will decrease if the foreign firm switches from a purely profit‐driven firm to a CSR firm. A consumer‐oriented CSR strategy will always hurt the domestic firm’s profit, whereas the relationship between the foreign firm’s profit and CSR sensitivity (the degree to which a firm cares about consumer welfare) is invertedly U‐shaped. When firms’ decisions to switch to CSR are endogeneized, only the foreign firm will become a CSR firm. 相似文献
7.
Evaluation of the performance of GDSSs has been dominated by an experimental and laboratory based approach. Other writers
have argued for evaluation to be based in the “real-world” of decision making teams. The evaluation criteria have tended to
ignore many of the issues that would be paramount for some of the stakeholders in the evaluation process. This article seeks
to explore the criteria that might be used by a wide variety of stakeholders, including developers, facilitators, clients,
key actors, vendors, as well as academics. By drawing together the criteria associated with all of the stakeholders we discover
a broader, and possibly more thorough, framework for evaluation. The evaluation of any particular GDSS in relation to other
GDSSs can then be seen in the context of contingent weighting applied to each of the criteria where each GDSS is able to be
seen in its best light and in relation to its declared aims.
This article argues for a more eclectic and contingent approach to the evaluation of GDSSs which will encourage their future
development to be clearer about purpose and the boundaries of their use. 相似文献
8.
Migrant networks, language learning and tourism employment 总被引:1,自引:0,他引:1
This paper examines the relationship between migrants’ social networks, the processes of language acquisition and tourism employment. Data collected using netnography and interviews are used to identify the strategies that Polish workers in the UK use to develop their language skills. The paper highlights the roles played by co-workers, co-nationals and customers in migrants’ language learning, both in the physical spaces of work and the virtual spaces of internet forums. It also shows how migrant workers exchange knowledge about the use of English during different stages of their migration careers: prior to leaving their country of origin and getting a job, during their employment and after leaving their job. Implications for academic inquiry and human resource management practice are outlined. 相似文献
9.
Participants in this pilot study are asked to rank their perceptions of food waste by choosing between pairs of four types of foods of equal weight: chicken, cheese, bread and peas. We examine whether these perceptions are consistent for proportionally different weights and whether they are linked to the perceived cost of the items. The subjects (n = 106) who are students are randomly assigned to one of three information treatments: a control, a food waste video or the text of the food waste video. We find that the subjects have very accurate perceptions of the environmental impacts of food waste and the relative wastefulness of different food groups. These perceptions are not related to cooking skills or frequency. We find that the perceptions are consistent for proportionally different weights of food: 25 and 50 g. We also find that the perceptions are linked to participants’ assessments of the relative prices of the foods. However, while the participants have somewhat accurate estimates of the relative prices, they vastly overestimate the actual prices of foods. This implies that more accurate information about the true prices could actually decrease their perceptions of the wastefulness of throwing out food. Given that the participants had highly accurate perceptions of the environmental impacts of food waste and the relative wastefulness of animal vs. plant products, we found no significant increase in overall accuracy of perceptions due to information treatment, except for bread, for those who saw the food waste video. 相似文献
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