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排序方式: 共有196条查询结果,搜索用时 46 毫秒
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This paper formalizes the commonsensical hypothesis that resource scarcity causes a large allocation of time and effort to appropriative competition. Our main innovation is to model explicitly the positive intertemporal effect of consumption on the probability of survival. The critical assumption is that this effect becomes stronger as resources become scarcer. We also show that anticipated future resource abundance increases the incremental value of survival and, consequently, amplifies the current allocation of time and effort to appropriative competition. Interestingly, if resources are currently scarce, then larger anticipated future abundance can cause a big enough increase in the time and effort allocated to appropriative competition to result in a decrease in the sum of current and expected future utility, a “paradox of anticipated abundance”. 相似文献
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Udvarhelyi IS Relman AS Binder GM Spence RK Kennedy EM Grossman JH Termeer HA Raines LJ Marincola E Pyle TO 《Harvard business review》1994,72(5):45-7, 50, 52 passim
In "Making Competition in Health Care Work" (July-August 1994), Elizabeth Olmsted Teisberg, Michael E. Porter, and Gregory B. Brown ask a question that has been absent from the national debate on health care reform: How can the United States achieve sustained cost reductions while at the same time maintaining quality of care? The authors argue that innovation driven by rigorous competition is the key to successful reform. A lasting cure for health care in the United States should include four basic elements: corrected incentives to spur productive competition, universal insurance to secure economic efficiency, relevant information to ensure meaningful choice, and innovation to guarantee dynamic improvement. In this issue's Perspectives section, eleven experts examine the current state of the health care system and offer their views on the shape that reform should take. Some excerpts: "On the road to innovation, let us not forget to develop the tools that allow physicians, payers, and patients to make better decisions." I. Steven Udvarhelyi; "Health care is not a product or service that can be standardized, packaged, marketed, or adequately judged by consumers according to quality and price." Arnold S. Relman; "Just as antitrust laws are the wise restraints that make competition free in other sectors of the economy, so the right kind of managed competition can work well in health care." Edward M. Kennedy "Biomedical research should be considered primarily an investment in the national economic well-being with additional humanitarian benefits." Elizabeth Marincola. 相似文献
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Lewis Danielle Springer Thomas M. Anderson Randy I. 《The Journal of Real Estate Finance and Economics》2003,26(1):65-80
Using a stochastic frontier methodology that incorporates Bayesian statistics, this paper analyzes the cost efficiency of real estate investment trusts (REITs) by observing the deviations of the measured costs of individual REITs from a defined efficient cost frontier. Using 1995–1997 data, we extend the previous research in this area and measure REIT efficiency more precisely by isolating random measurement error from the overall deviations from the efficient cost frontier. We calculate the magnitude of each REIT's managerial inefficiency, the industry inefficiency, and returns to scale. In addition, we assess specific characteristics of REITs for their contribution to inefficiency by calculating the odds ratio that a REIT with a specific characteristic is more efficient than a REIT with an alternative characteristic. The results show that, for the years studied, REITs are relatively cost efficient with most REITs facing increasing returns to scale. Additionally, the REIT's use of debt and the REIT's management style significantly affect the cost performance of REITs during the aforementioned time period. Finally, diversification across property types, as measured, does not seem to influence REIT cost efficiency. 相似文献
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Based on helping dozens of military veterans refine their ideas for starting a business, we identify and discuss a series of potential pitfalls that aspiring entrepreneurs—veterans and civilians alike—must avoid in order to be successful. Potential entrepreneurs must not confuse the pursuit of hobbies and self-employment with the act of creating a business. People who wish to build a business around public speaking or consulting need to firmly establish why customers should be willing to pay for their advice. Individuals that seek to develop a new non-profit organization must have a viable value proposition even though they are not pursing a profit motive. Overall, the entrepreneurial ventures that are most likely to succeed are those that (1) are based on a sustainable business model, (2) leverage the entrepreneur's unique experiences and attributes, and (3) are built around a process or system that enables the venture to prosper even if the entrepreneur leaves the venture. 相似文献
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Susan Himmelweit Barbara Bergmann Kate Green Randy Albelda Charlotte Koren 《Feminist Economics》2013,19(2):237-264
This Dialogue presents the views of four authors, from the US, the UK, and Norway, on the best policies to help lone mothers. Lone mothers face an inevitable dilemma in allocating their time between earning income and caring for their children. The low-earning capacity of women in an unequal labor market exacerbates the problem, causing material hardship for many lone mothers and their families. The policy solutions proposed lie along a spectrum, ranging from those that seek to enable all lone mothers to take employment to those that aim to let mothers choose whether to take employment or care for their children themselves. Other policies discussed concern ways to value and support caregiving, improve the low-wage labor market for women, and provide a set of income supports that would both boost income and provide time to care for children. 相似文献
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Michael R. Bartolacci Larry J. LeBlanc Yasanur Kayikci Thomas A. Grossman 《Journal of Business Logistics》2012,33(2):118-127
Logistics optimization has significantly grown in popularity over the last few decades. Improvements in computing power, modeling software, and the willingness of companies to invest time in the modeling effort have allowed models that were once too unwieldy to solve to optimality to be solved quickly. This has led to a more wide‐spread recognition by logistics managers of the potential advantages of using optimization. The scope of logistics optimization in companies and organizations has expanded to address strategic, tactical, operational, and collaborative decision making. Spreadsheets, an analytical tool familiar to managers, have played a crucial role in the expanded modeling efforts of companies. Although optimization’s role in logistics has grown tremendously, there still are areas that remain to be explored that will allow it to achieve an even larger and more successful role in the management of companies. Additionally, there are some models that are still too large or too complex to currently solve to optimality, despite the advances in computing power and modeling/solving software. 相似文献
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Recent theoretical models (Carlson, Fisher, and Giammarino, 2004) predict an association between the book-to-market equity ratio (BE/ME) and operating leverage in the cross-section. Consistent with these models, we find a positive association between BE/ME and the degree of operating leverage (DOL), between DOL and stock returns, and between DOL and systematic risk. Overall, our findings provide support for a risk-based explanation for the value premium that is consistent with existing theoretical models. The evolution of systematic risk associated with firm-level investment activity, rather than financial distress, seems to be the main determinant of the value premium. 相似文献