全文获取类型
收费全文 | 31314篇 |
免费 | 679篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 5594篇 |
工业经济 | 2345篇 |
计划管理 | 5401篇 |
经济学 | 7317篇 |
综合类 | 400篇 |
运输经济 | 209篇 |
旅游经济 | 454篇 |
贸易经济 | 5144篇 |
农业经济 | 1466篇 |
经济概况 | 3558篇 |
信息产业经济 | 3篇 |
邮电经济 | 103篇 |
出版年
2021年 | 193篇 |
2020年 | 382篇 |
2019年 | 576篇 |
2018年 | 652篇 |
2017年 | 711篇 |
2016年 | 681篇 |
2015年 | 477篇 |
2014年 | 726篇 |
2013年 | 3185篇 |
2012年 | 1014篇 |
2011年 | 1051篇 |
2010年 | 932篇 |
2009年 | 1057篇 |
2008年 | 962篇 |
2007年 | 854篇 |
2006年 | 793篇 |
2005年 | 690篇 |
2004年 | 623篇 |
2003年 | 647篇 |
2002年 | 554篇 |
2001年 | 680篇 |
2000年 | 644篇 |
1999年 | 568篇 |
1998年 | 622篇 |
1997年 | 599篇 |
1996年 | 576篇 |
1995年 | 528篇 |
1994年 | 514篇 |
1993年 | 503篇 |
1992年 | 544篇 |
1991年 | 546篇 |
1990年 | 478篇 |
1989年 | 383篇 |
1988年 | 369篇 |
1987年 | 374篇 |
1986年 | 356篇 |
1985年 | 522篇 |
1984年 | 484篇 |
1983年 | 483篇 |
1982年 | 405篇 |
1981年 | 438篇 |
1980年 | 409篇 |
1979年 | 418篇 |
1978年 | 347篇 |
1977年 | 284篇 |
1976年 | 296篇 |
1975年 | 256篇 |
1974年 | 239篇 |
1973年 | 220篇 |
1972年 | 154篇 |
排序方式: 共有10000条查询结果,搜索用时 12 毫秒
911.
We investigate the intertemporal relation between information asymmetry and equity issues, and particularly focus on which firms drive this relation. We find that when information asymmetry for a particular firm is low compared to the recent past, the firm is more likely to issue equity as opposed to debt. Importantly, this intertemporal association is driven by firms with high levels of information asymmetry. These firms are more prone to adverse selection costs and thus have more to gain by issuing equity after a narrowing of the information gap between managers and investors. Our findings are robust to various firm-specific proxies for information asymmetry. 相似文献
912.
We investigate whether or not there is a link between conservative accounting practices and the sensitivity of executive pay to accounting performance. Using several accrual‐based measures of accounting conservatism as well as alternative measures of accounting performance, we estimate an econometric model of CEO compensation that incorporates the interaction of accounting conservatism and accounting performance. Consistent with optimal contracting theory, we find that the sensitivity of executive pay to accounting performance is higher for firms that report conservative accounting earnings. These results support the hypothesis that accounting conservatism, by limiting earnings management opportunities and improving the reliability of accounting performance measures, allows firms to formulate contracts that tie executive compensation more closely to accounting performance. 相似文献
913.
We empirically examine Parkinson's range‐based volatility estimate in the federal funds market, which is unique because institutional regulations create a predictable pattern in interday volatility. We find that range‐based volatility estimates and standard deviations produce the expected volatility pattern. We also find that at trading pressure points where microstructure noise should be greatest, range‐based estimates are less than the standard deviations. Thus, we support the argument that range‐based volatility estimates remove the upward bias created by microstructure noise. We find that the Parkinson method is the most efficient range‐based volatility measure among a set of alternates in this market. 相似文献
914.
Corporate managers typically estimate the value of capital projects by discounting the project's expected future net cash flows at the cost of capital. The capital asset pricing model (CAPM) is generally used to estimate that cost. But, as anyone who has worked on the finance or business development staff of a public company can attest, there are major challenges in applying the CAPM, including largely unresolved questions about what constitutes the “market portfolio,” how to estimate market risk premiums, and how to estimate the betas of projects. In a short article published in Financial Management in 1988, Fischer Black proposed a valuation “discounting rule” that avoids all these problems—one that involves discounting a relatively certain (as opposed to an expected or average) level of operating cash flows at the risk-free rate. But Black's article does not address the question of how to calculate these “certainty equivalent” or “conditional” cash flows. In this article, the authors propose a way of implementing Black's rule that involves estimating the “conditional” cash flows in a three-step procedure:
- • Find a benchmark security that correlates with the project's cash flows;
- • Estimate the percentiles of the distribution in which the benchmark return equals the risk-free rate over different investment horizons;
- • Use information from corporate managers to assess the cash flows that define the same percentiles in the cash flow distributions.
915.
Hedge funds often impose lockups and notice periods to limit the ability of investors to withdraw capital. We model the investor's decision to withdraw capital as a real option and treat lockups and notice periods as exercise restrictions. Our methodology incorporates time-varying probabilities of hedge fund failure and optimal early exercise. We estimate a two-year lockup with a three-month notice period costs approximately 1% of the initial investment for an investor with constant relative risk aversion utility and risk aversion of three. The cost of illiquidity can easily exceed 10% if the hedge fund manager can arbitrarily suspend withdrawals. 相似文献
916.
Seasoned equity offering (SEO) underpricing has increased dramatically since the early 1980s. While previous research has examined the determinants of SEO underpricing, these studies have not explored the effect of insider ownership on discounts. We find that this effect is twofold. First, higher insider ownership reduces float, thereby increasing price pressure and SEO underpricing. This effect is greatest in firms with low liquidity. Second, the greater the percentage of secondary shares offered, the lower the underpricing, suggesting that manager's pressure banks to reduce underpricing when their personal wealth is at stake. However, we find that this negative relation is mitigated if the firm employs a prestigious underwriter. 相似文献
917.
Richard R. W. Brooks Claudia M. Landeo Kathryn E. Spier 《The Rand journal of economics》2010,41(4):649-673
The operating agreements of many business ventures include clauses to facilitate the exit of joint owners. In so‐called Texas Shootouts, one owner names a single buy‐sell price and the other owner is compelled to either buy or sell shares at that named price. Despite their prevalence in real‐world contracts, Texas Shootouts are rarely triggered. In our theoretical framework, sole ownership is more efficient than joint ownership. Negotiations are frustrated, however, by the presence of asymmetric information. In equilibrium, owners eschew buy‐sell offers in favor of simple offers to buy or to sell shares and bargaining failures arise. Experimental data support these findings. 相似文献
918.
Andre P. Liebenberg James M. Carson Robert E. Hoyt 《The Journal of risk and insurance》2010,77(3):651-666
Previous research has examined the demand for life insurance policy loans using aggregate policy loan data. In contrast, we use a detailed household survey data set containing life insurance and policy loan information to alternatively, and in some cases more directly, examine the four hypotheses traditionally associated with policy loan demand. Our research provides the first U.S. evidence (in the post–World War II period) in support of the policy loan emergency fund hypothesis. In particular, we find that the more detailed emergency fund proxies used here reveal a significantly positive relation between loan demand and recent expense or income shocks. 相似文献
919.
In an earlier edition of this journal, we published evidence relating to the nature of discount rates chosen by a sample of large Australian‐listed firms in the context of their goodwill impairment testing ( Carlin and Finch 2009 ). We argued that our evidence suggested that the rigour of the International Financial Reporting Standards (IFRS) goodwill impairment testing process was being undermined by inappropriate choice of discount rates on the part of many firms. In a commentary published alongside our article, questions were raised as to the validity of our conclusions and the methodology we applied in our study ( Gallery 2009 ). Subsequently, Bradbury has also contributed to the debate, raising similar concerns to those voiced by Gallery ( Bradbury 2010 ). In this brief paper, we provide further and better particulars in relation to our original dataset in a bid to assist those who have taken an interest in this debate to further inform their view of the merits (or otherwise) of the case we made in our original article. 相似文献
920.
Jennifer M. Gidley 《Futures》2010,42(2):125-133
This paper points to some limitations of the narrow version of integral futures (IF) as represented in the recent special issue of Futures (2008, vol. 40, issue 2). I also propose several ways that the IF brand could be refreshed through a broader and deeper approach to integral futures by way of a scholarly engagement with other kindred discourses. The main focus of this paper is to open out beyond the “myth-of-the-given” in relation to the notion of integral and in this way broaden and deepen possibilities for integral futures. 相似文献