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71.
David Schmidt Robert Shupp James M. Walker Elinor Ostrom 《Games and Economic Behavior》2003,42(2):281-299
This paper presents results from a series of experiments designed to test the impact on subject behavior of changes in the risk dominance and payoff dominance characteristics of two player coordination games. The main finding is that changes in risk dominance significantly affect play of the subjects, whereas changes in the level of payoff dominance do not. Observed history of play also has an important influence on subject behavior, both when subjects are randomly rematched after each game and when they remain matched with the same individual for a sequence of games. 相似文献
72.
社会资本发展对企业财务的影响分析 总被引:1,自引:0,他引:1
社会资本理论于80年代晚期才引起理论界的广泛关注,此后又引入企业社会资本概念。社会资本的积累直接关系到企业的生存与发展,本文将社会资本理论应用于财务领域,从收益和风险两方面探讨了企业投资于社会资本应考虑的问题,为企业有目的地构建社会资本做初步分析。 相似文献
73.
74.
个人账户可继承性与计发月数内在关系的定量分析 总被引:5,自引:0,他引:5
张勇 《数量经济技术经济研究》2006,23(12):126-134
计发月数是我国基本养老保险体系中个人账户的关键参数,本文通过构建包含继承份额的个人账户精算模型,修正了计发月数的计算公式,得到个人账户收支平衡的判别定理。研究表明,忽略可继承性会严重低估计发月数,并产生大量资金缺口;计发月数与期望寿命无直接关系;提高退休年龄不一定能增强支付能力;提高投资收益率,或降低计发月数并合理控制收支差额,是当前协调个人账户养老保障和财务支付能力的重要办法。 相似文献
75.
中国银行业不良资产证券化信用风险评价研究 总被引:1,自引:0,他引:1
本文首先论述了国际通用的各信用风险模型的适用条件,提出改进的KMV模型作为度量我国不良资产证券化信用风险的模型。同时,提出了计算其违约概率的方法。然后根据我国不良资产的实际情况,建立了一个具有普遍性的模拟的不良资产包,分析其证券化中各个不同发债规模下的信用风险,得出其资产变现收入在对数正态分布下和真实分布中的违约概率,为我国不良资产证券化的风险控制在一定程度上提供了理论依据和技术支持。 相似文献
76.
This paper examines the market for advice and the underlying perception that advice is useful and informative. We do this by first providing a theoretical examination of the informational content of advice and then by setting up a series of experimental markets where this advice is sold. In these markets we provide bidders with a demographic profile of the “experts” offering advice.The results of our experiment generate several interesting findings. The raw bid data suggest that subjects bid significantly more for data than they do for advice. Second, in the market for advice there appears to be no consensus as to who are the best advisors although on average economists demand the highest mean price and women suffer a discount. In addition, we find that whether a subject suffers from a representativeness bias in the way he or she processes data has an impact on how he or she bids for advice and on his or her willingness to follow it once offered. Finally, we find that on average people impute a low level of informativeness onto advice, consistent with their bidding behavior for data versus advice.This work was done under grant number SES-0425118 of the National Science Foundation. The authors would like to recognize the Center for Experimental Social Science at New York University for its additional support. We also acknowledge the help of Elizabeth Potamites for her research assistance. 相似文献
77.
Summary. This paper studies monotone risk aversion, the aversion to monotone, mean-preserving increase in risk (Quiggin [21]), in the Rank Dependent Expected Utility (RDEU) model. This model replaces expected utility by another functional, characterized by two functions, a utility function u in conjunction with a probability-perception function f. Monotone mean-preserving increases in risk are closely related to the notion of comparative
dispersion introduced by Bickel and Lehmann [3,4] in Non-parametric Statistics. We present a characterization of the pairs (u,f) of monotone risk averse decision makers, based on an index of greediness
G
u
of the utility function u and an index of pessimism
P
f
of the probability perception function f: the decision maker is monotone risk averse if and only if
. The index of greediness (non-concavity) of u is the supremum of
taken over
. The index of pessimism of f is the infimum of
taken over 0 < v < 1. Thus,
, with G
u
= 1 iff u is concave. If
then
, i.e., f is majorized by the identity function. Since P
f
= 1 for Expected Utility maximizers,
forces u to be concave in this case; thus, the characterization of risk aversion as
is a direct generalization from EU to RDEU. A novel element is that concavity of u is not necessary. In fact, u must be concave only if P
f
= 1.Received: 10 April 2001, Revised: 18 November 2003, JEL Classification Numbers:
D81.
Correspondence to: Michéle CohenAlain Chateauneuf, Michéle Cohen, Isaac Meilijson: We are most grateful to Mark Machina, Peter Wakker and two anonymous referees for very helpful suggestions and comments. 相似文献
78.
Joaquim Silvestre 《Economic Theory》2002,20(2):413-425
Summary. Starr (1973) showed that, if people have different subjective probabilities, ex ante and ex post efficiency conflict. Conversely, under the simple preferences that he considered, the discrepancy between ex ante and ex post efficiency disappears when subjective probabilities are identical. Here I consider identical subjective probabilities, but
more general preferences. First, risk attraction is admitted. Second, I dispense with the double requirement (dubbed IZU)
of additive separability and state-independence of the utility of zero-date consumption, an unrealistic requirement when modeling
the investment in durable goods. I find that, under IZU, and as long as ex post preferences satisfy the natural assumption of quasiconcavity (and satisfy some technical qualifications), an ex ante efficient allocation is indeed ex post efficient, but the converse is not necessarily true under risk attraction. If, on the other hand, IZU is violated, then one
can have ex ante efficient allocations that are not ex post efficient, and vice-versa, even under risk aversion.
Received: June 25, 1999; revised version: March 2001 相似文献
79.
非农投资总量、结构和要素替代对就业的影响 总被引:7,自引:0,他引:7
将影响非农产业就业量的增长因素分解为:投资总量效应、结构变化效应和要素替代效应;投资总量的增长是拉动非农就业增长的主要力量,投资的行业结构变化效应以及要素替代效应导致了非农就业的下降。 相似文献
80.
中国城市经济增长的效率与差异 总被引:13,自引:0,他引:13
李培 《数量经济技术经济研究》2007,24(7):97-106
本文在利用Malmquist指数和一系列反映地区差异的统计指标对中国216个地级市1990~2004年经济增长的效率和差异进行描述的基础上,针对2000年以来中国城市经济表现出的新特点,采用因子分析和空间计量方法分析了影响中国城市经济增长的主要因素,结果表明216个地级市TFP整体呈现增长趋势,城市经济的地区差异明显且呈扩大趋势。2000年以来影响中国城市经济增长的因子强度依次为:地理位置、产业结构与市场化水平和要素投入等。 相似文献