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   14842篇
  免费   401篇
财政金融   2961篇
工业经济   1337篇
计划管理   2316篇
经济学   3212篇
综合类   172篇
运输经济   171篇
旅游经济   487篇
贸易经济   2768篇
农业经济   636篇
经济概况   1172篇
信息产业经济   2篇
邮电经济   9篇
  2023年   94篇
  2021年   93篇
  2020年   219篇
  2019年   312篇
  2018年   367篇
  2017年   398篇
  2016年   383篇
  2015年   245篇
  2014年   397篇
  2013年   2055篇
  2012年   479篇
  2011年   609篇
  2010年   474篇
  2009年   529篇
  2008年   483篇
  2007年   458篇
  2006年   413篇
  2005年   406篇
  2004年   375篇
  2003年   414篇
  2002年   412篇
  2001年   336篇
  2000年   285篇
  1999年   287篇
  1998年   292篇
  1997年   264篇
  1996年   256篇
  1995年   214篇
  1994年   196篇
  1993年   222篇
  1992年   193篇
  1991年   198篇
  1990年   150篇
  1989年   130篇
  1988年   143篇
  1987年   116篇
  1986年   135篇
  1985年   205篇
  1984年   215篇
  1983年   179篇
  1982年   185篇
  1981年   172篇
  1980年   179篇
  1979年   177篇
  1978年   120篇
  1977年   125篇
  1976年   109篇
  1975年   82篇
  1974年   102篇
  1973年   65篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
This article examines the introduction of teamworking in the pharmaceutical industry. It was found that the organisation of work contained a mix of benefits and costs. The balance between the two was not random; employees' response was influenced by and connected to prior experiences and expectations, management's business strategies and approach to industrial relations and HRM. The article argues that there was a new dynamic, but one cast within the familiar terrain of management seeking to maintain control and generate consent.  相似文献   
993.
There is a wide body of evidence that suggests that the management of 'human factors' in post‐acquisition implementation is important and, where it is badly managed, helps to explain why up to half of acquisitions are not deemed to be successful. A central feature in this process is the management of employee expectations. Using research insights drawn from the management and formation of expectations in recruitment and from breaches of the psychological contract, this article reports on research in organisations subject to a takeover within two years of the field work. Detailed findings on two of these cases are used to explore the dimensions of dual expectations in such circumstances. It is suggested that employees in acquired companies have concerns that become expectations concerning both themselves ('me') and their work group ('us'), ranging from immediate job and employment worries on transfer to longer‐term status and behavioural and cultural concerns in the 'new' organisation. These expectations will vary over time and have different facets according to the seniority of the employee, the degree of integration sought by the acquirer and the extent to which expectations formed are proven to be realistic and realisable. The two cases analysed reveal different aspects of unmet expectations in acquisitions. Seven factors were identified as influential in shaping employees' expectations in acquisitions: quality of communication, believability of information, trust in management action, credibility of leadership, fairness of action, consistency of action and communication and logic of management action or behaviour.  相似文献   
994.
Inspired by Clower’s conjecture that the necessity of trading through money in monetised economies might hinder convergence to competitive equilibrium, and hence, for example, cause unemployment, we experimentally investigate behaviour in markets where trading has to be done through money. In order to evaluate the properties of these markets, we compare their behaviour to behaviour in markets without money, where money cannot intervene. As the trading mechanism might be a compounding factor, we investigate two kinds of market mechanism: the double auction, where bids, asks and trades take place in continuous time throughout a trading period; and the clearing house, where bids and asks are placed once in a trading period, and which are then cleared by an aggregating device. We thus have four treatments, the pairwise combinations of non-monetised/monetised trading with double auction/clearing house. We find that: convergence is faster under non-monetised trading, implying that the necessity of using money to facilitate trade hinders convergence; that monetised trading is noisier than non-monetised trading; and that the volume of trade and realised surpluses are higher with the double auction than the clearing house. As far as efficiency is concerned, monetised trading lowers both informational and allocational efficiency, and while the double auction outperforms the clearing house in terms of allocational efficiency, the clearing house is marginally better than the double auction in terms of informational efficiency when trade is through money. Crucially we confirm the conjecture that inspired these experiments: that the necessity to use money in trading hinders convergence to competitive equilibrium, lowers realised trades and surpluses, and hence may cause unemployment.  相似文献   
995.
Chang-Yang Lee 《Technovation》2011,31(5-6):256-269
This paper aims to evaluate the effects of various forms of public research and development (R&D) support on firms’ incentives to invest in R&D. First, in order to identify potential channels through which public R&D support influences firm R&D, a formal model of firm R&D with public R&D support is developed and analyzed. Four potential channels are identified: the technological-competence-enhancing effect, the demand-creating effect, the R&D-cost-reducing effect and the (project) overlap (or duplication) effect. These multiple channels indicate that it is difficult to evaluate the aggregate effect of public R&D support and that there are differential effects of public R&D support on firm R&D, depending on various firm- or industry-specific characteristics. Second, the differential effects of public R&D support are empirically tested using unique firm-level data for nine industries across six countries. Public support tends to have a complementarity effect on private R&D for firms with low technological competence, for firms in industries with high technological opportunities and for firms facing intense market competition. In contrast, firms with high technological competence and firms that have enjoyed fast demand growth in recent years show a crowding-out effect, and firm size and age do not show any discernible differential effect.  相似文献   
996.
997.
We show that monopoly is the parent of monopsony when an industry employs specialized resources. This means that the welfare loss from monopoly and monopolization is larger than commonly portrayed. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
998.
Motivated by the common problem of constructing predictive distributions for daily asset returns over horizons of one to several trading days, this article introduces a new model for time series. This model is a generalization of the Markov normal mixture model in which the mixture components are themselves normal mixtures, and it is a specific case of an artificial neural network model with two hidden layers. The article uses the model to construct predictive distributions of daily S&P 500 returns 1971–2005 and one‐year maturity bond returns 1987–2007. For these time series the model compares favorably with ARCH and stochastic volatility models. The article concludes by using the model to form predictive distributions of one‐ to ten‐day returns during volatile episodes for the S&P 500 and bond return series. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
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