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91.
Szilvia Ppai 《Games and Economic Behavior》2004,48(2):157
We investigate the uniqueness of stable coalition structures in a simple coalition formation model, for which specific coalition formation games, such as the marriage and roommate models, are special cases that are obtained by restricting the coalitions that may form. The main result is a characterization of collections of permissible coalitions which ensure that there is a unique stable coalition structure in the corresponding coalition formation model. In particular, we show that only single-lapping coalition formation models have a unique stable coalition structure for each preference profile, where single-lapping means that two coalitions cannot have more than one member in common, and coalitions do not form cycles. We also give another characterization using a graph representation, explore the implications of our results for matching models, and examine the existence of strategyproof coalition formation rules. 相似文献
92.
现金流量可以分为资本成本、资本回收额与剩余收益三部分,因此当折现时不同的现金流量应与不同的相关折现率相匹配。Damodaran提出的匹配原则使得两种计算净现值的方法得出不同的结果,而通过对匹配原则进行修正则可以解决这一问题。 相似文献
93.
Although no stable matching mechanism can induce truth-telling as a dominant strategy for all participants (Roth, 1982), recent studies have presented conditions under which truthful reporting by all agents is close to optimal (Immorlica and Mahdian, 2005, Kojima and Pathak, 2009, Lee, 2011). Our results demonstrate that in large, uniform markets using the Men-Proposing Deferred Acceptance Algorithm, each woman's best response to truthful behavior by all other agents is to truncate her list substantially. In fact, the optimal degree of truncation for such a woman goes to 100% of her list as the market size grows large. In general one-to-one markets we provide comparative statics for optimal truncation strategies: reduction in risk aversion and reduced correlation across preferences each lead agents to truncate more. So while several recent papers focused on the limits of strategic manipulation, our results serve as a reminder that without pre-conditions ensuring truthful reporting, there exists a potential for significant manipulation even in settings where agents have little information. 相似文献
94.
95.
This paper contributes to the literature on capital structure and firm performance. Using firm‐level data covering over 11,000 firms from 47 countries over a recent period of 1997‐2007, we address the effect of different sources of financing on corporate performance, employing a matching process, which allows an adequate `like‐for‐like’ comparison between high and low level of financing by firms. Robust to different matching estimators, the main findings are consistent with the theories of capital structure, in that firms with high debt‐to‐equity ratio tend to have lower returns to shareholders (profitability) and lower internal efficiency (productivity). The results become more robust when we separate the firms into advanced and emerging country‐groups or countries with high/low levels of financial development. Given the lower level of leverage below 50% on average in emerging markets (or in countries with lower level of financial reforms), firms in these economies face lower risk of financial distress and thereby less adverse effect on firm profitability and productivity, relative to their counterparts in advanced economies. We also find that retained earnings and equity financing improve performance, while debt financing by firms particularly in the form of bank loans leads to lower performance, although not so in the case of debt raised through issuing bonds. 相似文献
96.
Distributive analysis typically involves comparisons of distributions where individuals differ in more than just one attribute. In the particular case where there are two attributes and where the distribution of one of these two attributes is fixed, one can appeal to sequential rank order dominance for comparing distributions. We show that sequential rank order domination of one distribution over another implies that the dominating distribution can be obtained from the dominated one by means of a finite sequence of favourable permutations, and conversely. We provide two examples where favourable permutations prove to have interesting implications from a normative point of view. 相似文献
97.
Governments in virtually all developed countries subsidise “guided preparation” for entrepreneurial activity. Despite being so widespread, the evidence that this assistance enhances venture performance remains in dispute, primarily because of a lack of consensus over statistical approaches. This paper provides a new — to entrepreneurship scholars-approach, applying it to a programme guiding nascent and new entrepreneurs in Denmark. It concludes that the programme contributes to the survival and size of new ventures, but its impact on growth is less clear. It also finds that impact is sensitive to changing the eligibility criteria of the programme — such as requiring a modest payment from participants or selecting participants according to observable entrepreneurial characteristics. 相似文献
98.
Iichiro Uesugi Koji Sakai Guy M. Yamashiro 《Journal of the Japanese and International Economies》2010,24(4):457-480
This paper examines the effectiveness of public credit guarantee programs in not only increasing the availability of loans to small and medium enterprises (SMEs), but in also improving the ex-post performance of borrowing firms. Using a unique panel data set, we identify the effects of a massive credit guarantee program implemented by the Japanese government from 1998 to 2001. While we do find that the availability of loans increased for program participants, when loans were provided by undercapitalized banks the increased liquidity persisted for only a few years. Further, the ex-post performance of program participants, with the exception of firms with sizable net worth, deteriorated relative to their non-participating counterparts. 相似文献
99.
VLL(Vertical Line Locus)法是一种常用的基于物方的影像匹配方法,本文以灰度数码航空影像为影像匹配的数据源,采用VLL算法进行影像匹配的实验,对VLL影像匹配算法的计算速度、算法的优势、缺陷及改进方案、匹配结果的精度等方面进行讨论。 相似文献
100.
Subsidizing charitable contributions: a natural field experiment comparing matching and rebate subsidies 总被引:1,自引:0,他引:1
We report the results of a field experiment conducted in conjunction with a mailed fundraising campaign of a nonprofit organization.
The experiment is designed to compare the response of donors to subsidies in the form of matching amounts or rebated amounts.
Matching subsidies are used by many corporations as an employee benefit; the US federal tax system encourages giving using
a rebate subsidy by making donations tax deductible. The design includes a control group and two levels of subsidy of each
type. Our main result is that matching subsidies result in larger total donations to charities than rebate subsidies, a result
that is qualitatively similar to the lab findings. The estimated price elasticities for the matching subsidy are very similar
to (and insignificantly different from) the lab experiments, while rebate subsidies lead to lower contributions in the field
than in the lab. Since rebates in the field involve substantial lags and additional complications as compared with the “instant
rebates” of the lab, this latter difference is not unexpected. The matching results are an important step in validating lab
estimates of responsiveness to subsidies of charitable giving.
Electronic Supplementary Material The online version of this article () contains supplementary material, which is available to authorized users. 相似文献
Electronic Supplementary Material The online version of this article () contains supplementary material, which is available to authorized users. 相似文献