全文获取类型
收费全文 | 10419篇 |
免费 | 238篇 |
专业分类
财政金融 | 1993篇 |
工业经济 | 1001篇 |
计划管理 | 1725篇 |
经济学 | 2326篇 |
综合类 | 130篇 |
运输经济 | 80篇 |
旅游经济 | 200篇 |
贸易经济 | 1836篇 |
农业经济 | 544篇 |
经济概况 | 818篇 |
信息产业经济 | 2篇 |
邮电经济 | 2篇 |
出版年
2023年 | 52篇 |
2021年 | 48篇 |
2020年 | 120篇 |
2019年 | 155篇 |
2018年 | 168篇 |
2017年 | 201篇 |
2016年 | 205篇 |
2015年 | 139篇 |
2014年 | 208篇 |
2013年 | 1338篇 |
2012年 | 269篇 |
2011年 | 384篇 |
2010年 | 267篇 |
2009年 | 330篇 |
2008年 | 313篇 |
2007年 | 320篇 |
2006年 | 321篇 |
2005年 | 296篇 |
2004年 | 273篇 |
2003年 | 297篇 |
2002年 | 294篇 |
2001年 | 257篇 |
2000年 | 221篇 |
1999年 | 223篇 |
1998年 | 231篇 |
1997年 | 221篇 |
1996年 | 198篇 |
1995年 | 163篇 |
1994年 | 151篇 |
1993年 | 177篇 |
1992年 | 159篇 |
1991年 | 156篇 |
1990年 | 130篇 |
1989年 | 113篇 |
1988年 | 115篇 |
1987年 | 99篇 |
1986年 | 117篇 |
1985年 | 180篇 |
1984年 | 196篇 |
1983年 | 155篇 |
1982年 | 159篇 |
1981年 | 150篇 |
1980年 | 155篇 |
1979年 | 155篇 |
1978年 | 107篇 |
1977年 | 106篇 |
1976年 | 98篇 |
1975年 | 73篇 |
1974年 | 99篇 |
1973年 | 54篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
We analyze a sample of 72 IPO firms that went public between 1992 and 1996 for which we have detailed proprietary information about the amount and cost of D&O liability insurance. If managers of IPO firms are exploiting superior inside information, we hypothesize that the amount of insurance coverage chosen will be related to the post-offering performance of the issuing firm's shares. Consistent with the hypothesis, we find a significant negative relation between the three-year post-IPO stock price performance and the insurance coverage purchased in conjunction with the IPO. One plausible interpretation is that, like insider securities transactions, D&O insurance decisions reveal opportunistic behavior by managers. This provides some motivation to argue that disclosure of the details of D&O insurance decisions, as is required in some other countries, is valuable. 相似文献
72.
Proches Ngatuni John Capstaff Andrew Marshall 《Journal of Business Finance & Accounting》2007,34(1-2):33-64
Abstract: This study finds evidence of significant long-term underperformance following rights issues made during 1986-95 in the UK. The findings are resilient to a number of methodological controls. In contrast, our results for a smaller sample of open offers made during 1991-95 show strong positive performance over a 5-year post-issue period, implying that firms making open offers had better growth prospects than firms making rights issues. During 1986-90, a period when open offers were rarely used, firms appeared to be making rights issues to exploit overvaluation. However, this was not evident for rights issues made during 1991-95, a period when open offers were more commonly used. 相似文献
73.
Andrew Prevost Ramesh P. Rao & John D. Wagster 《Journal of Business Finance & Accounting》2002,29(7&8):1079-1104
On April 1, 1988, New Zealand stopped the double taxation of dividends by implementing a full dividend imputation program. Because many believed that the tax advantage of debt had led to more highly leveraged firms subject to greater financial risk than was socially optimal, it was hoped the removal of incentives to finance with debt would result in a more efficient allocation of capital. The empirical results suggest that the shareholder wealth gain from dividend imputation was more than offset in firms with large debt levels. Moreover, an examination of debt ratios indicates debt levels declined in the post–imputation period. 相似文献
74.
Traditional methods of estimating market volatility use daily return observations from a stock index to calculate monthly variance. We break with tradition and estimate stock market volatility using the daily, cross-sectional standard deviation of returns for all firms trading on the New York Stock Exchange and the American Stock Exchange. We find a significantly positive relation between risk and return. Market volatility is estimated to be about half the volatility level previously reported. The intraday, cross-sectional market volatility measure provides findings consistent with risk-return theory. 相似文献
75.
76.
77.
This paper presents some estimates of international trade in banking services. We use IMF data on assets and liabilities of both domestic banks and non-banks with foreign banks, and of foreigners with the domestic banking system to construct measures of the volume of transactions on which banking intermediation services are provided across national borders. We then use estimates of the spread between borrowing and lending rates for depositors and borrowers with the financial institutions involved to estimate the value of international flows of intermediation services. Estimates are presented for 1982–84 and 1991–93 for the U.S., the U.K., and Canada. 相似文献
78.
This paper incorporates an ecosystem model into a model of a simple economy. The decisionmaking agents in the ecosystem are individual organisms aggregated to the species level. A species may provide utility directly to humans, or it may provide utility indirectly because it is used either as a raw material in goods fabrication or as sustenance for other species. We describe a comparative static equilibrium of the ecosystem where species' demands for other species are equal to the supplies of those other species, and energy is conserved. The ecosystem is then embedded in the economy so that the effects of human intervention can be traced through both the ecosystem and the economy. Human intervention creates ecosystem externalities such that ecosystem equilibria are shifted and the new equilibria affect the utility or the production processes of other humans. This framework allows us to describe in principle which ecosystem services can be efficiently usurped by humans, which waste flows can be efficiently allowed into ecosystems, and which ecosystem organisms and physical attributes can be efficiently maintained. 相似文献
79.
Impacts of Declining U.S. Retail Beef Demand on Farm-Level Beef Prices and Production 总被引:1,自引:0,他引:1
A systems model was estimated to determine the effects of declining U.S. retail beef demand on farm-level beef prices and production. Retail beef demand declined by nearly 66% from 1976 to 1999. Results indicate autonomous shifts in retail demand significantly impacted farm-level demands and production. Based on equilibrium multipliers, the 1976–99 reduction in beef demand decreased real slaughter cattle prices and production by 32.1% and 11.2%, respectively. Real feeder cattle prices and production decreased by 8.0% and 22.6%, respectively. Combining the decreases in farm prices and production, slaughter and feeder cattle producers experienced a real revenue reduction of $13.3 billion (61%) due to the long-term decline in demand. 相似文献
80.
Dynamic futures‐hedging ratios are estimated across seven markets using generalized models of the variance/covariance structure. The hedging performances of the resultant dynamic strategies are then compared with static and naïve strategies, both in‐ and out‐of‐sample. Bayesian‐adjusted hedge ratios also are employed as error purgers. The empirical results indicate that the generalized dynamic models are well specified and that their use in determining optimal hedge ratios can lead to improvements in hedging performance as measured by the volatilities of the returns on the optimally hedged position. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:241–260, 2003 相似文献