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排序方式: 共有73条查询结果,搜索用时 15 毫秒
1.
This paper considers educational investment, wages and hours of market work in an imperfectly competitive labour market with heterogeneous workers and home production. It investigates the degree to which there might be both underemployment in the labour market and underinvestment in education. A central insight is that the ex post participation decision of workers endogeneously generates increasing marginal returns to education. Although equilibrium implies underinvestment in education, optimal policy is not to subsidise education. Instead it is to subsidise labour market participation which we argue might be efficiently targeted as state-provided childcare support. 相似文献
2.
L.Stephen Coles 《Futures》1977,9(4):315-323
This article reviews current developments in artificial intelligence as they apply to medicine. Initial applications of this approach to medicine are being actively pursued in medical diagnosis, interpretation of data from chemical studies, and the development of computer models of human behavioural processes. Of special interest is a new research programme established at Stanford University called SUMEX, one of whose major goals is the application of artificial intelligence to medicine. Within the framework of SUMEX, research is actively under way in a number of aspects of biomedical research and clinical medicine. Some of the work reviewed includes the DENDRAL and META-DENDRAL programs, the Protein Crystallography System, SECS, MYCIN, DIALOG, CASNET, the Present Illness Program, PARRY, and Believer. Suggestions for future applications of artificial intelligence to medicine will include clinical patient-record information systems, pharmacology, prosthetics, gerontology, and radiology. 相似文献
3.
We explore how gender bias in career opportunities affects matching in a marriage market with search frictions and where an individual’s fitness decays with age. We document a “being left on the shelf” effect where young singles, who find the marriage market rapidly thins with age, rush into early partnership. Singles with stronger career opportunities, however, have a greater option value to defer marriage. More equal career opportunities for women (captured by greater schooling and better occupations) potentially explain the recent emergence of toyboy unions, in which the woman is at least 5 years older than her partner. 相似文献
4.
Tim Coles Neil Warren D. Scott Borden Claire Dinan 《Journal of Sustainable Tourism》2017,25(4):471-488
This paper examines how environmental resources and costs feature in business models of small- and medium-sized tourism enterprises (SMTEs). Several studies have pointed to the generally positive nature of the relationship between the economic and environmental performance of tourism firms. Yet, although business models act as a vector between these aspects of firm performance, they have been overlooked in sustainable tourism discourse. The paper reports findings from discussion groups of SMTE businesses in South West England during the global economic downturn. Environmental costs and cost control were afforded relatively little importance in terms of value creation; conversely, there was a strong and predictable emphasis on revenue generation. Indirect tactics emerged for dealing with guests’ environmental behaviours which reflected this prevailing commercial logic. Green credentials were routinely de-emphasized, sometimes regarded as liabilities, in a form of greenhushing. Responses were framed by reference to social media and how online reviews may negatively impact on future value capture. Conceptually, the business model emerged as an important lens for understanding how environmental resources and costs were valourized. The paper highlights the need to ensure that contemporary approaches to environmental management in SMTEs reflect the current and fast-changing conditions that frame business models. 相似文献
5.
This study analyzes the disaster response and recovery efforts following the January 12th, 2010 Haitian earthquake through the eyes of 18 different relief agencies. Focusing on the formation and maintenance of partnerships after the catastrophic earthquake, this paper explores the concepts of cooperation, mutual understanding, and connectivity among agencies responding to the earthquake. The case study is based on results from interviews and interactions with 18 agencies during a month-long trip to Haiti in the summer of 2010. Of the agencies interviewed, it was found that agencies that had no partnerships or presence in Haiti prior to the earthquake were most likely to build new clinics, orphanages, and schools. Additionally, we found that agencies were more likely to develop new partnerships from new contacts rather than dormant contacts. By studying the partnerships between local and international agencies, it was found that their relationships were less stable than partnerships between international agencies. This study hopes to increase understanding and applicability of research in disaster relief networks by providing a new perspective into how agencies work together. 相似文献
6.
Recent learning-by-doing research highlights the importance of examining multiple measures of experience and their relationship to the performance of work teams. Our paper studies the role of individual experience, organizational experience, team leader experience, and experience working together on a team (team familiarity) in the context of improvement teams. To do so, we analyze successful and failed six sigma improvement team projects at a Fortune 500 consumer products manufacturer with multiple business groups. Such improvement project teams focus on deliberate learning, which differs from the primary focus of work teams.Our analysis uses archival data generated by these improvement project teams over a six year time span. Of the four experience variables we study, we find that team leader experience exhibits the strongest relationship with project success, followed by organizational experience. Further, in contrast to prior-related research on work teams, we find no relationship between individual experience or team familiarity and project success beyond that explained by team leader and organizational experience. These results suggest that a well-developed and deployed structured problem-solving process—characteristic of effective six sigma deployments—may reduce the importance of team familiarity in the context of improvement teams. 相似文献
7.
Fund Advisor Compensation in Closed-End Funds 总被引:2,自引:0,他引:2
This paper examines the relation between the premium on closed-end funds and organizational features of the funds and advisors, including the compensation scheme of the investment advisor. We find that the fund premium is larger when: (a) the advisor's compensation is more sensitive to fund performance; (b) the assets managed by the advisor are concentrated in the fund in question; (c) the advisor manages other funds with low compensation sensitivity to performance and with low concentration of assets managed by the advisor; and (d) the advisor's compensation contract evaluates performance relative to a benchmark. 相似文献
8.
This paper extends the bargaining and matching literature, such as Rubinstein and Wolinsky (1985), by considering a new matching process. We assume that a central information agency exists, such as real estate agencies in the housing market and employment agencies (or newspapers) in the labour market, which puts traders into direct contact with each other. With heterogeneity of trader preferences, equilibrium trade is characterized by existing traders on each side of the market trying to match with the flow of new traders on the other side (since existing traders have already sampled and rejected each other). Two procedures of trade co-exist, namely a strategic bilateral bargaining process and a competitive bidding process, depending on the number of potential matches a new trader obtains. We characterize the unique symmetric Markov perfect equilibrium to this stochastic trading game. 相似文献
9.
Melvyn G. Coles 《International Economic Review》1999,40(4):851-868
This article considers equilibrium decentralized trade when there is a marketplace where buyers and sellers meet costlessly. Since buyers have idiosyncratic match payoffs for each seller's good, some buyers, rather than trade with the current stock of sellers, wait for new sellers to enter the marketplace to obtain a good they like. A turnover externality exists where all traders are better off with higher entry rates of new traders. Furthermore, this turnover externality supports multiple Pareto-rankable equilibria. This provides new insights into similar results obtained in the random-matching literature. 相似文献
10.