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   7773篇
  免费   617篇
  国内免费   15篇
财政金融   1287篇
工业经济   306篇
计划管理   984篇
经济学   3948篇
综合类   94篇
运输经济   15篇
旅游经济   17篇
贸易经济   423篇
农业经济   540篇
经济概况   791篇
  2024年   18篇
  2023年   111篇
  2022年   72篇
  2021年   138篇
  2020年   354篇
  2019年   369篇
  2018年   223篇
  2017年   308篇
  2016年   254篇
  2015年   268篇
  2014年   535篇
  2013年   724篇
  2012年   557篇
  2011年   797篇
  2010年   511篇
  2009年   491篇
  2008年   481篇
  2007年   551篇
  2006年   391篇
  2005年   273篇
  2004年   189篇
  2003年   169篇
  2002年   72篇
  2001年   45篇
  2000年   44篇
  1999年   67篇
  1998年   89篇
  1997年   92篇
  1996年   69篇
  1995年   29篇
  1994年   33篇
  1993年   13篇
  1992年   3篇
  1991年   1篇
  1988年   1篇
  1986年   1篇
  1985年   8篇
  1984年   12篇
  1983年   17篇
  1982年   12篇
  1981年   1篇
  1980年   4篇
  1979年   4篇
  1978年   3篇
  1975年   1篇
排序方式: 共有8405条查询结果,搜索用时 718 毫秒
261.
I model innovation contests as an all‐pay auction in which it is possible not to achieve successful innovation despite costly R&D investments, and as a result, there is no winner. In such a case, the winning payoff turns out to be nonmonotonic in own bid. I derive the sufficient conditions for the existence of pure strategy equilibria, and fully characterize the nondegenerate mixed strategy equilibrium. In the mixed strategy equilibrium, the support of the low‐value bidder is not continuous, and both the high‐value and the low‐value bidders place an atom in the (distinct) lower bound of their respective support. Under symmetric valuation, both bidders place an atom at zero. These results can explain why one does not observe very low quality innovation in real life, or why even symmetric firms may stay out of an innovation contest.  相似文献   
262.
This paper assesses how much mortgage interest rates in Italy are priced on credit risk as proxied by the probability of household mortgage delinquency estimated using the EU-Silc database. Owing to data availability, we restrict the analysis of mortgage pricing to Italian households. Consistent with the more widespread use of credit scoring, estimates indicate that Italian lenders have increasingly priced mortgage interest rates on household credit risk. For mortgages granted between 2000 and 2007, we find that a 1% point increase in the probability of default is associated with a 21 basis point rise in mortgage interest rates, lower than the 38 basis point premium Edelberg (2006) estimated for the US at the end of the 1990s.  相似文献   
263.
In this paper we employ a new approach to test the contribution of information in rating announcements. This is the first study to test and corroborate how the CDS market responds to rating actions after controlling for the presence of concurrent public and private information. We show that since the clustering of rating announcements characterizes economically significant developments, the common practice of using “uncontaminated” samples underestimates market response. As in previous studies, we find that the market response to bad news is stronger than to good news. Nevertheless, bad news and negative rating announcements tend to cluster. Therefore, the residual contribution of negative rating announcements is small and in some cases insignificant. Positive rating announcements are less frequent and less clustered, though their residual contribution is still significant.  相似文献   
264.
This paper proposes a model where the structure rather than the size of the financial sector explains its influence on income distribution. Because of information asymmetries, a financial sector dominated solely by profit‐maximizing financial intermediaries will increase income and wealth inequality as it gives preferential access to credit for high‐income agents, whereas a diversified inclusive financial sector with alternative models of finance, like cooperatives, will reduce the inequality gap. No full convergence in income distribution can be realized through finance only and there is still a need for redistribution policies. Accordingly, an objective function for cooperative financial institutions should define a desired pricing behaviour that can increase the income of members at a rate higher than the average growth rate of the economy.  相似文献   
265.
The paper investigates the term structure of CD rates and its relationship with the federal funds rate or monetary policy. The term structure derived in this paper is governed primarily by the federal funds rate and secondarily by banks’ income smoothing behavior. It is consistent with the estimation results and differs significantly from the standard term structure of interest rates. The downturn phase of business cycles appears to be accompanied by more aggressive income smoothing by banks (compared with the upturn phase) due to their pessimistic expectations of future profits. The compositional shift in banks’ liabilities during the downturn phase away from CDs toward transaction deposits may pose a greater withdrawal risk for banks.  相似文献   
266.
We investigate the effect of trade openness on economic growth in transition countries using a transparent statistical methodology that leads to data‐driven case studies. In particular, we employ synthetic control methods in a panel of transition economies and compare GDP growth in treated (that is, open) countries with growth in a convex combination of similar but untreated (that is, closed) countries. We find that trade liberalization tends to have a positive effect on the pattern of real GDP per capita. One of our most robust results shows that making the transition without opening up to trade considerably hampers growth.  相似文献   
267.
This paper examines the behaviour of a competitive exporting firm under joint revenue and exchange rate risk. The firm can trade unbiased currency futures contracts for hedging purposes. We show that neither the separation theorem nor the full‐hedging theorem holds when the revenue shock prevails. If the correlation between the revenue shock and the random spot exchange rate is non‐positive, the firm optimally produces less than the benchmark level when the revenue shock is absent. If, in addition, the firm is prudent, the optimal futures position is an under‐hedge. Finally, we derive sufficient conditions under which the firm's optimal output level is higher in the presence than in the absence of the revenue shock. Operational hedging and financial hedging as such interact in a complicated way to better cope with the multiple sources of uncertainty faced by the firm.  相似文献   
268.
Economic theory predicts that private information on risks in insurance markets leads to adverse selection. To counterbalance private information, insurers collect and use information on applicants to assess their risk and to calculate premiums in an underwriting process. Using data from the English Longitudinal Study of Ageing (ELSA), this paper documents that differences in the information used in underwriting across life insurance, annuity, and health insurance markets attenuate private information to different extents. The results are in line with – and might help to reconcile – the mixed empirical evidence on adverse selection across these markets.  相似文献   
269.
Over the past 30 years, China has fully exploited its advantage to steadily foster an innovation system for the biomedical industry with Chinese characteristics, that is, ‘Government-guided, resource-integrated and long-term planning.’ The system originated from historically famous ‘863 program’ in the 1980s, evolved with a series of favourable policies in the different periods, and eventually has taken shape in the industrial clusters across the country. It features with a systematic and integrated R&D infrastructure (or public platform) at different levels. In this study, China’s biomedical innovation system will be examined and the leading role of Chinese authorities will be explored from the perspective of Triple Helix theory. As the ‘highland of innovation’, Shanghai case is highlighted with plentiful information gathered from primary sources in the involved agencies for the first time, including the Shanghai Biopharma Service Platform.  相似文献   
270.
We explore the impact of donor–recipient ideological differences on US economic aid decisions. We find that the odds and the amount of aid to left-wing recipients are higher under left-wing US administrations. The opposite result is found for center-right recipients.  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