全文获取类型
收费全文 | 2139篇 |
免费 | 159篇 |
国内免费 | 15篇 |
专业分类
财政金融 | 601篇 |
工业经济 | 78篇 |
计划管理 | 362篇 |
经济学 | 432篇 |
综合类 | 154篇 |
运输经济 | 11篇 |
旅游经济 | 12篇 |
贸易经济 | 426篇 |
农业经济 | 98篇 |
经济概况 | 139篇 |
出版年
2024年 | 2篇 |
2023年 | 46篇 |
2022年 | 17篇 |
2021年 | 50篇 |
2020年 | 91篇 |
2019年 | 94篇 |
2018年 | 75篇 |
2017年 | 102篇 |
2016年 | 94篇 |
2015年 | 84篇 |
2014年 | 127篇 |
2013年 | 212篇 |
2012年 | 131篇 |
2011年 | 128篇 |
2010年 | 99篇 |
2009年 | 102篇 |
2008年 | 103篇 |
2007年 | 109篇 |
2006年 | 115篇 |
2005年 | 83篇 |
2004年 | 81篇 |
2003年 | 58篇 |
2002年 | 54篇 |
2001年 | 46篇 |
2000年 | 55篇 |
1999年 | 29篇 |
1998年 | 25篇 |
1997年 | 20篇 |
1996年 | 20篇 |
1995年 | 17篇 |
1994年 | 12篇 |
1993年 | 5篇 |
1992年 | 9篇 |
1991年 | 10篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
排序方式: 共有2313条查询结果,搜索用时 46 毫秒
1.
Simon P. Anderson
ystein Foros Hans Jarle Kind 《Journal of Economics & Management Strategy》2019,28(1):125-137
Consumer “multihoming” (watching two TV channels, or buying two news magazines) has surprisingly important effects on market equilibrium and performance in (two‐sided) media markets. We show this by introducing consumer multihoming and advertising finance into the classic circle model of product differentiation. When consumers multihome (attend more than one platform), media platforms can charge only incremental value prices to advertisers. Entry or merger leaves consumer prices unchanged under consumer multihoming, but leaves advertiser prices unchanged under single‐homing: Multihoming flips the side of the market on which platforms compete. In contrast to standard circle results, equilibrium product variety can be insufficient under multihoming. 相似文献
2.
Fabian Hollstein Marcel Prokopczuk Björn Tharann Chardin Wese Simen 《European Journal of Finance》2019,25(10):937-965
We comprehensively analyze the predictive power of several option-implied variables for monthly S&P 500 excess returns and realized variance. The correlation risk premium (CRP) and the variance risk premium (VRP) emerge as strong predictors of both excess returns and realized variance. This is true both in- and out-of-sample. Our results also reveal that statistical evidence of predictability does not necessarily lead to economic gains. However, a timing strategy based on the CRP leads to utility gains of more than 5.03% per annum. Forecast combinations provide stable forecasts for both excess returns and realized variance, and add economic value. 相似文献
3.
Daniel Hernndez‐Hernndez Harold A. Moreno‐Franco Jos‐Luis Prez 《Mathematical Finance》2019,29(4):1039-1065
We study the optimal execution problem with multiplicative price impact in algorithmic trading, when an agent holds an initial position of shares of a financial asset. The interselling decision times are modeled by the arrival times of a Poisson process. The criterion to be optimized consists in maximizing the expected net present value of the gains of the agent, and it is proved that an optimal strategy has a barrier form, depending only on the number of shares left and the level of the asset price. 相似文献
4.
5.
Marco Runkel 《Bulletin of economic research》2004,56(2):115-132
This paper investigates optimal emissions taxation under imperfect competition in a durable good industry where products are sold (instead of rented). As a benchmark, attention is paid to the special case of monopoly with exogenously given product durability. In line with previous literature, the optimal emission tax in this benchmark model falls short of marginal damage (underinternalization). Extending the benchmark model either to the case of an oligopolistic market structure and/or to the case of endogenous product durability then provides two cases in which the optimal emission tax overinternalizes marginal damage. 相似文献
6.
When the indemnity schedule is contingent on the farmer's price and individual yield, an optimal crop revenue insurance contract depends only on the farmer's gross revenue. However, this design is not efficient if, as is the case with available contracts, the coverage function is based on imperfect estimators of individual yield and/or price. The producer's degree of prudence and the extent of basis risks have important influences on the optimal indemnity schedule. In this broader context, optimal protection is not provided by available U.S. crop insurance contracts and may include combinations of revenue insurance, yield insurance, futures, and options contracts. 相似文献
7.
J. Kol 《De Economist》2004,152(2):273-296
Jan Tinbergen's scientific writings cover six main areas of research. His articles in De Economist represent these areas; in some cases the contributions to De Economist were of a pioneering nature (business cycles, economic models, economic integration); in others De Economist was the first or even single outlet for Tinbergen's work. This article provides an overview of these contributions. The wide scope of Tinbergen's areas of research goes together with a unity in approach, the characteristics of which are: policy relevance, quantification and measurement, balance in analysis and presentation, and learning from experience. Tinbergen's articles in De Economist bear witness to this approach which at the time also met with scepticism and resistance as this overview shows. According to Houthakker, Tinbergen's main contribution may be that, amidst the pleas of interest groups and the slogans of the laity, an attempt is made that the voice of the professional economic researcher be heard. Tinbergen's work still sets an agenda for both economic research and policy making. 相似文献
8.
Guojie Zhao" Tianjin Zhiyong Shi Guojie Zhao 《美中经济评论(英文版)》2006,5(2):9-12
The selective principle of mutually exclusive project is the maximum of net present value, It is difficult to make decision when NPVA is equal to NPVLB. Some assistant analyses are put forward in "Enterprise Investment Decision Management". The scientific marginal analysis shows that the assistant analyses including the duration analysis are wrong. This problem can be solved by the classical marginal analysis. 相似文献
9.
We extend the concept of piecewise linear histogram introduced recently by Beirlant, Berlinet and Györfi. The disadvantage of that histogram is that in many models it takes on negative values with probability close to 1. We show that for a wide set of models, the extended class of estimates contains a bona fide density with probability tending to 1 as the sample size n increases to infinity. The mean integrated absolute error in the extended class of estimators decreases with the same rate n–2/5 as in the original narrower class. 相似文献
10.
Gavin Brown Paul Draper & Eddie McKenzie 《Journal of Business Finance & Accounting》1997,24(2):155-178
Transition matrix techniques are used to relate the past and present performance of pension fund portfolios. In particular, funds are ranked to study the tendency of portfolios to remain in the same quartile of the ranking as they were in the previous period. For raw returns, funds in both of the top quartiles are found to be more likely to remain in the same quartile than would be expected by chance. This result can be taken as limited evidence for the consistency of performance. Similar systemic effects are observed on a risk-adjusted basis. There appears to be clear evidence that some fund managers can offer a degree of consistent good performance. 相似文献