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   15290篇
  免费   396篇
财政金融   2950篇
工业经济   1300篇
计划管理   2573篇
经济学   3246篇
综合类   159篇
运输经济   122篇
旅游经济   270篇
贸易经济   2267篇
农业经济   712篇
经济概况   2082篇
信息产业经济   1篇
邮电经济   4篇
  2021年   105篇
  2020年   171篇
  2019年   222篇
  2018年   331篇
  2017年   312篇
  2016年   292篇
  2015年   203篇
  2014年   337篇
  2013年   1609篇
  2012年   452篇
  2011年   458篇
  2010年   439篇
  2009年   512篇
  2008年   442篇
  2007年   373篇
  2006年   351篇
  2005年   288篇
  2004年   303篇
  2003年   303篇
  2002年   289篇
  2001年   293篇
  2000年   328篇
  1999年   287篇
  1998年   266篇
  1997年   277篇
  1996年   256篇
  1995年   234篇
  1994年   231篇
  1993年   270篇
  1992年   245篇
  1991年   251篇
  1990年   237篇
  1989年   220篇
  1988年   208篇
  1987年   187篇
  1986年   216篇
  1985年   293篇
  1984年   269篇
  1983年   270篇
  1982年   226篇
  1981年   222篇
  1980年   242篇
  1979年   202篇
  1978年   172篇
  1977年   165篇
  1976年   144篇
  1975年   130篇
  1974年   109篇
  1973年   105篇
  1972年   79篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
Most bank merger studies do not control for hidden bailouts, which may lead to biased results. In this study we employ a unique data set of approximately 1000 mergers to analyze the determinants of bank mergers. We use undisclosed information on banks’ regulatory intervention history to distinguish between distressed and non-distressed mergers. Among merging banks, we find that improving financial profiles lower the likelihood of distressed mergers more than the likelihood of non-distressed mergers. The likelihood to acquire a bank is also reduced but less than the probability to be acquired. Both distressed and non-distressed mergers have worse CAMEL profiles than non-merging banks. Hence, non-distressed mergers may be motivated by the desire to forestall serious future financial distress and prevent regulatory intervention.  相似文献   
992.
This paper considers the estimation of the expected rate of return on a set of risky assets. The approach to estimation focuses on the covariance matrix for the returns. The structure in the covariance matrix determines shared information which is useful in estimating the mean return for each asset. An empirical Bayes estimator is developed using the covariance structure of the returns distribution. The estimator is an improvement on the maximum likelihood and Bayes–Stein estimators in terms of mean squared error. The effect of reduced estimation error on accumulated wealth is analyzed for the portfolio choice model with constant relative risk aversion utility.  相似文献   
993.
Given industry competitiveness, how do firms' new product development (NPD) process designs differ when responding to an innovation mandate? How do NPD design elements differ across firms when implementing NPD processes? These design elements are strategic business unit (SBU) senior management involvement, business case content, customer interactions, and cross‐functional integration. What are the consequences of different combinations of NPD process design elements for innovation productivity? We explore these questions via a collective case study of newly implemented NPD process designs at three different SBUs of a major US‐based international conglomerate, 1 year after receiving the mandate to grow through innovation. Our analysis suggests that industry competitiveness and firm characteristics influence the NPD process design as SBUs employ distinct combinations of NPD design elements. The differential emphasis on design elements leads to variation in process design and divergence in innovation productivity.  相似文献   
994.
This article addresses the integration of sales channels after mergers and acquisitions (M&A) by appraising the strengths, weaknesses, and biases associated with the four most common frameworks for evaluating sales channels (sales management, historical performance, strategic fit, and customer choice) for their appropriateness in a post-M&A context. The authors develop a methodological approach that uses a balanced-scorecard framework to guide managers through the sales channel integration process, and then apply this approach to the merger of two industrial firms' sales organizations across 21 territories. In so doing, they reveal various pitfalls and propose and test some analytical corrections. Longitudinal performance data support comparisons across the different evaluative frameworks; in particular, the sales management and customer choice frameworks provide the most insight into channel partners' post-integration performance. The results support the premise that channel integration can be improved by accounting for factors unique to the M&A context and using an approach that triangulates multiple perspectives.  相似文献   
995.
There has been a shift from transactional to relational exchange and relationship marketing both in the business to business and professional services contexts. This paper seeks to explore the manner in which personal relationships affect the process and outcomes of purchasing of professional business services. Specifically, it focuses on the role of the professional service providers as boundary spanners in the formation of personal relationships. These personal relationships constitute the underlying basis of long-term relationships between the purchasing and provider organizations in such complex service settings. The findings of this study demonstrate that the manner in which the boundary spanners cultivate relationships support the concept of relationship specific tasks. It extends this conception by use of the data to outline the chronological process over time Understanding the roles, function, and ultimately importance, of these relationships facilitates the identification and development of appropriate strategies to manage these relationships.  相似文献   
996.
Investment decisions in the wireless industry applying real options   总被引:1,自引:0,他引:1  
The wireless industry is one of the most capital intensive high-technology industries. This paper applies real options techniques to estimate investments under uncertainty in two new ventures: (a) deferral of the expansion from 2.5G to 3G networks; and (b) expansion of a 2.5G network using Wi-Fi as an alternative technology. The cases are examined and analyzed both qualitatively and quantitatively, using realistic assumptions and parameters. Investment cost, number of subscribers, pricing of services, and risk are at the core of investment decision processing. In both cases, sensitivity analysis of the value of the (real) option considering the above key parameters was conducted, to extrapolate useful findings that should be taken into consideration by the decision makers in wireless companies.  相似文献   
997.
998.
999.
1000.
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