首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   134257篇
  免费   3829篇
  国内免费   1篇
财政金融   25389篇
工业经济   11518篇
计划管理   21375篇
经济学   28592篇
综合类   1451篇
运输经济   950篇
旅游经济   2482篇
贸易经济   23257篇
农业经济   6055篇
经济概况   16774篇
信息产业经济   7篇
邮电经济   237篇
  2021年   822篇
  2020年   1606篇
  2019年   2373篇
  2018年   2278篇
  2017年   2449篇
  2016年   2653篇
  2015年   2075篇
  2014年   3394篇
  2013年   15223篇
  2012年   4179篇
  2011年   4070篇
  2010年   3651篇
  2009年   4272篇
  2008年   3849篇
  2007年   3170篇
  2006年   3544篇
  2005年   3522篇
  2004年   3088篇
  2003年   2843篇
  2002年   2828篇
  2001年   2582篇
  2000年   2497篇
  1999年   2403篇
  1998年   2256篇
  1997年   2297篇
  1996年   2165篇
  1995年   1961篇
  1994年   1978篇
  1993年   1950篇
  1992年   1999篇
  1991年   1895篇
  1990年   1786篇
  1989年   1665篇
  1988年   1598篇
  1987年   1591篇
  1986年   1675篇
  1985年   2429篇
  1984年   2304篇
  1983年   2102篇
  1982年   1973篇
  1981年   1897篇
  1980年   1862篇
  1979年   1798篇
  1978年   1617篇
  1977年   1619篇
  1976年   1372篇
  1975年   1270篇
  1974年   1186篇
  1973年   1182篇
  1972年   893篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
251.
252.
253.
254.
The relaxation of security laws and regulations in emerging markets in the Middle East and North Africa (MENA) provides abundant opportunities for foreign investors. These markets exhibit high-expected returns and substantial volatility. In this paper, we investigate the lead/lag relationship between the MENA countries and regions. We find no market causality or spillover from one country to another in the North Africa region. Our results for the Levant region reveal that there are linkages between stock markets in this region. The results for the Gulf Cooperation Council (GCC) region show that there is more interaction and linkage in the GCC region than in the North Africa and Levant regions. An unexpected result is that UAE's stock market leads all the markets in this region. Finally, we investigate linkages among the three regions. We find that GCC influences the other two regions.  相似文献   
255.
256.
This paper first examines the rapid growth and changing composition of manufactured exports in Indonesia and Thailand, highlighting the rapid growth of office and computer machinery and electric machinery, somewhat slower growth of non-electric and transportation machinery, as well as the low growth of previously large exports of textiles apparel. Second, the important contributions of foreign multinational enterprises (MNEs) to export growth in the machinery industries, particularly in electric, office, and computing machinery, are documented. Third, the paper describes trade policies in all these industries in some detail, emphasizing how low protection was a key facilitator of rapid export growth in the MNEs that dominated the electric, office, and computing machinery industry, while high protection reduced incentives to export among MNEs in the transportation machinery industry.  相似文献   
257.
We examine whether the use of the three‐moment capital asset pricing model can account for liquidity risk. We also make a comparative analysis of a four‐factor model based on Fama–French and Pástor–Stambaugh factors versus a model based solely on stock characteristics. Our findings suggest that neither of the models captures the liquidity premium nor do stock characteristics serve as proxies for liquidity. We also find that sensitivities of stock return to fluctuations in market liquidity do not subsume the effect of characteristic liquidity. Furthermore, our empirical findings are robust to differences in market microstructure or trading protocols between NYSE/AMEX and NASDAQ.  相似文献   
258.
259.
Option-Implied Risk Aversion Estimates   总被引:4,自引:0,他引:4  
Using a utility function to adjust the risk‐neutral PDF embedded in cross sections of options, we obtain measures of the risk aversion implied in option prices. Using FTSE 100 and S&P 500 options, and both power and exponential‐utility functions, we estimate the representative agent's relative risk aversion (RRA) at different horizons. The estimated coefficients of RRA are all reasonable. The RRA estimates are remarkably consistent across utility functions and across markets for given horizons. The degree of RRA declines broadly with the forecast horizon and is lower during periods of high market volatility.  相似文献   
260.
In a Costly State Verification world, an agent who has private information regarding the state of the world must report what state occurred to a principal, who can verify the state at a cost. An agent then has what is called ex post moral hazard: he has an incentive to misreport the true state to extract rents from the principal. Assuming the principal cannot commit to an auditing strategy, the optimal contract is such that: (1) the agent's expected marginal utility when there is an accident (high‐ and low‐loss states) is equal to his marginal utility when there is no accident; (2) the lower loss is undercompensated, while the higher loss is overcompensated; and (3) the welfare of the agent is greater under commitment than under no‐commitment. Result 2 is contrary to the results obtained if the principal can commit to an auditing strategy (higher losses underpaid and lower losses overpaid). The reason is that by increasing the difference between the high and the low indemnity payments, the probability of fraud is reduced.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号