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   6507篇
  免费   135篇
  国内免费   2篇
财政金融   657篇
工业经济   177篇
计划管理   1501篇
经济学   1328篇
综合类   25篇
运输经济   22篇
旅游经济   43篇
贸易经济   1664篇
农业经济   69篇
经济概况   899篇
邮电经济   259篇
  2021年   42篇
  2020年   58篇
  2019年   63篇
  2018年   183篇
  2017年   172篇
  2016年   197篇
  2015年   164篇
  2014年   309篇
  2013年   677篇
  2012年   326篇
  2011年   206篇
  2010年   218篇
  2009年   229篇
  2008年   205篇
  2007年   127篇
  2006年   222篇
  2005年   204篇
  2004年   91篇
  2003年   117篇
  2002年   109篇
  2001年   98篇
  2000年   55篇
  1999年   42篇
  1996年   47篇
  1995年   44篇
  1993年   57篇
  1992年   54篇
  1991年   45篇
  1990年   61篇
  1989年   53篇
  1987年   43篇
  1986年   51篇
  1985年   72篇
  1984年   61篇
  1983年   42篇
  1982年   61篇
  1981年   65篇
  1980年   62篇
  1979年   55篇
  1978年   64篇
  1977年   73篇
  1976年   65篇
  1975年   55篇
  1974年   58篇
  1973年   51篇
  1972年   80篇
  1971年   80篇
  1970年   57篇
  1967年   40篇
  1963年   39篇
排序方式: 共有6644条查询结果,搜索用时 15 毫秒
1.
Societal pressures for greater sustainability can encourage firms to target part of their innovation activities at ecological initiatives (i.e., eco-innovation). Yet, depending on their value function, firms can respond differently to such pressures and exhibit variance in their eco-innovation activities. In this paper, we investigate the idea that a firm’s ownership structure may play a significant role in determining its engagement in eco-innovation. Specifically, we propose that ownership by family blockholders increases the value attached to the company’s reputation and that this, in turn, stimulates higher levels of eco-innovation. In other words, we model the company reputation motive as a key mediator in the relationship between family ownership and firm-level eco-innovation. To account for family firm heterogeneity, we also model the moderating role of owners’ intention to pass the business on to the next family generation (transgenerational intentions) and of the extent to which these owners reside in the firm’s local community (local embeddedness). As theoretical backdrop, our study builds on institutional theory and the mixed gamble logic. To test our hypotheses, we use a large sample of German firms and nonlinear moderated mediation regression analysis. Results reveal that family ownership is positively related to the introduction of eco-innovations by firms, in part because of the stronger emphasis being placed on the company’s reputation. We find that this effect is strongest when the owning-family has transgenerational intentions. As such, this study advances our understanding of firm-level drivers of eco-innovation. In view of the prevalence of family-owned firms and the mounting importance of ecological sustainability, it is valuable to extend knowledge on the contingent and indirect effect of family ownership on eco-innovation.  相似文献   
2.
Sell  Friedrich L.  Stiefl  Jürgen 《Intereconomics》2021,56(4):237-242
Intereconomics - Only a few years ago, it was a widespread belief that globalisation would trigger processes of democratisation worldwide. However, even old and established democracies such as the...  相似文献   
3.

We formulate a model in which agents embedded in an exogenous social network decide whether to adopt a new network product or not. In the theoretical part of the paper, we characterize the stochastically stable equilibria for complete networks and cycles. For an arbitrary network structure, we develop a novel graph decomposition method to characterize the set of recurrent communication states, which is a superset of stochastically stable equilibria of the adoption game presented in our model. In the simulation part, we study the contagion process of a network product in small-world networks that systematically represent social networks. We simulate a generalization of the Morris (Rev Econ Stud 67(1):57–78, 2000) Contagion model that can explain the chasm between early adopters and early majority. Our numerical analysis shows that the failure of a new network product is less likely in a highly cliquish network. In addition, the contagion process reaches to steady state faster in random networks than in highly cliquish networks. It turns out that marketers should work with mixed marketing strategies, which will result in a full contagion of a network product and faster contagion rates with a higher probability.

  相似文献   
4.
5.
6.
7.
The paper uses a two–sector efficiency–wage model to analyze the consequences of immigration for a small open economy with a dual labor market. Immigrants are characterized by an (exogenous) return probability. Legal regulations impose preferential hiring of natives or "old" immigrants. As a result, there is sectoral segregation between natives and immigrants, leading to discrimination of the type equal pay for equal work,but unequal "work." In the short run (with sector–specific capital), immigration has a positive first–order impact on natives' welfare if migration policy favors segregation through high return rates or restrictive hiring practices ("guest–worker system"). In the long run, its effect is only determined by factor intensities (2 ¥ 2 model). Finally, the improved integration of migrants yields efficiency gains and improves aggregate welfare of all residents.  相似文献   
8.
9.
10.
Deciding on advertising appropriations is a common problem to all National Tourist Offices. The Austrian National Tourist Office now employs a decision support model allowing for inclusion of managerial judgments. In tourism, like elsewhere, application of standard optimization routines to marketing decision making is straight- forward, once the relationship linking market response to input has been modeled adequately. A tailor-made decision calculus procedure eliciting managerial judgments on the relative importance of the factors determining a receiving country's travel market share provides the weights otherwise inaccessible by objective parameter estimation. A tourism manager thus can evaluate countries as tourism generators and allocate an advertising budget accordingly.  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