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   29253篇
  免费   564篇
财政金融   5281篇
工业经济   2152篇
计划管理   4961篇
经济学   6601篇
综合类   311篇
运输经济   181篇
旅游经济   479篇
贸易经济   4493篇
农业经济   1408篇
经济概况   3879篇
邮电经济   71篇
  2021年   167篇
  2020年   278篇
  2019年   374篇
  2018年   545篇
  2017年   534篇
  2016年   508篇
  2015年   379篇
  2014年   579篇
  2013年   2799篇
  2012年   781篇
  2011年   849篇
  2010年   676篇
  2009年   806篇
  2008年   849篇
  2007年   768篇
  2006年   710篇
  2005年   662篇
  2004年   660篇
  2003年   648篇
  2002年   595篇
  2001年   606篇
  2000年   599篇
  1999年   520篇
  1998年   526篇
  1997年   503篇
  1996年   501篇
  1995年   451篇
  1994年   500篇
  1993年   508篇
  1992年   472篇
  1991年   498篇
  1990年   454篇
  1989年   378篇
  1988年   389篇
  1987年   381篇
  1986年   395篇
  1985年   572篇
  1984年   535篇
  1983年   536篇
  1982年   516篇
  1981年   444篇
  1980年   435篇
  1979年   448篇
  1978年   380篇
  1977年   343篇
  1976年   273篇
  1975年   266篇
  1974年   249篇
  1973年   238篇
  1972年   196篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
This research, couched in the resource-based view of the firm, investigates the potential for reducing an organization’s decision uncertainty within its intellectual capital (IC) operating environment. Using structural equation modeling, we empirically test if organizational design can reduce the perceived uncertainty related to an IC context, which we refer to as knowledge uncertainty. We found evidence that decentralization and technology infrastructure support a results-based IC management control system which in turn is associated with reduced internal decision uncertainty. Finally, our statistics support a good overall fit for our model. Our findings suggest that if managers structure their organizational control systems appropriately for developing IC capabilities, these systems can lead to reduced internal uncertainty regarding human, structural, and relational capital.  相似文献   
993.
Do customers increase or decrease their spending in response to the introduction of an informational website? To answer this question, this study considers the effects of the introduction and use of an informational website by a large national retailer on offline customer buying behavior. More specifically, we study a website's effects on the number of shopping trips and the amount spent per category per shopping trip. The model is calibrated through the estimation of a Poisson model (shopping trips) and a type-II tobit model (the amount spent per category per shopping trip), with effect parameters that vary across customers. For the focal retailer, an informational website creates more bad than good news; most website visitors engage in fewer shopping trips and spend less in all product categories. The authors also compare the characteristics of shoppers who exhibit negative website effects with those few shoppers who show positive effects and thus derive key implications for research and practice.  相似文献   
994.
Although charismatic leadership theorists have long argued that leader–follower value congruence plays a central role in the development of charismatic relationships, few studies have tested this proposition. Using data from two studies involving a total of 329 CEOs and 1807 members of their top management teams, we tested the hypothesis that value congruence between leaders and their followers is empirically linked to follower perceptions of the charisma of their leader. Consistent with a relational perspective on charismatic leadership, strong support was found for the hypothesis that perceived value congruence between leaders (CEOs) and their followers (members of their top management teams) is positively related to follower perceptions of the degree of charisma possessed by the leader. Conversely, only limited support was found for the hypothesis that actual value congruence is linked to perceptions of charismatic leadership. Implications of these findings for research and practice are discussed.  相似文献   
995.
The dominant perspective on organizational buying behavior suggests that buyers tend to rely on objective criteria when making product choice decisions and that the potential influence of subjective cues, such as brands, on buyer decision making decreases with increasing risk. An alternative perspective, confirmed in this study by in-depth interviews with various managers, suggests that brands serve as a risk-reduction heuristic, whereby the influence of brands on decision making increases as a function of risk. Building on risk and information processing theories, this research builds on these complementary perspectives to propose that risk and brand sensitivity relate in a U-shaped manner, where brand sensitivity is highest in relatively low- or high-risk situations. The results of scenario- and survey-based field studies—involving 206 and 180 members of buying centers, respectively—suggest that both perspectives have merit and support the proposed nonlinear relationship. Moreover, the findings reveal that the risk-brand sensitivity relationship is moderated by competitive intensity, such that the linear (negative) and quadratic (positive) effects are stronger when competitive intensity is low.  相似文献   
996.
This article explores the hypothesis that third parties are motivated to seek information about agents who have behaved unethically in the past, even if the agent and available information are irrelevant to the third parties’ goals and interests. We explored two possible motives for this information seeking behavior: deonance, or the motive to care about ethics and justice simply for the sake of ethics and justice, and distrust-based threat monitoring. Participants in a consumer decision task were found to seek out information about an agent who had behaved unethically even when the agent was explicitly excluded from the task; there were no intentions to purchase from the agent; performance expectations for the agent’s product were low; the information that could be sought was non-diagnostic, redundant or irrelevant to an ethical judgment; and alternatives in the market offered as good or better value as the unethical agent. Critically, this information seeking took place even when the observer could disengage from and was not vulnerable to the agent. The findings are discussed in terms of third party information seeking and its effects on ethical behavior in the marketplace.  相似文献   
997.
This paper focuses on the innovative actions of entrepreneurs, namely their tendency to reveal the intellectual capital that results from their research efforts either in the form of public knowledge (publications) or private knowledge (patents). Using data collected by the National Research Council within the US National Academies from their survey of firm’s that received National Institutes of Health phase II Small Business Innovation Research awards between 1992 and 2001, we find that entrepreneurs with academic backgrounds are more likely to publish their intellectual capital compared with entrepreneurs with business backgrounds, who are more likely to patent their intellectual capital. We also find that, when universities are research partners, their presence complements the tendencies of academic entrepreneurs but does not offset those of business entrepreneurs.  相似文献   
998.
Candidate gene studies of human behavior are gaining interest in economics and entrepreneurship research. Performing and interpreting these studies is not straightforward because the selection of candidates influences the interpretation of the results. As an example, Nicolaou et al. (Small Bus Econ 36:151?C155, 2011) report a significant association between a common genetic variant in the DRD3 gene and the tendency to be an entrepreneur. We fail to replicate this finding using a much larger, independent dataset. In addition, we discuss the candidate gene approach and give suggestions to avoid the publication of false positives.  相似文献   
999.
The literature argues that entrepreneurial intentions depend on perceptions of desirability and perceptions of feasibility. Research in other fields suggests that there will be an interaction effect between these two main antecedents of intentions, but such interaction has not been investigated in the context of entrepreneurial intentions. In this paper we explore this interaction effect in an expectancy framework, hypothesizing a negative interaction effect between perceived desirability and perceived feasibility based on regulatory focus theory. A large multi-country sample confirms this negative interaction, and suggests a novel typology of nascent entrepreneurs as natural entrepreneurs, accidental entrepreneurs, and inevitable entrepreneurs.  相似文献   
1000.
At the European level there is an increasing focus on how freight transport can be moved from trucks on roads to more environmentally friendly modes such as rail and ship. A large proportion of the transport services between OD pairs, however, cannot be substituted since there is only one alternative available. The paper investigates the magnitude of this “structural inelasticity” of modal substitution in freight transport due to a sparser layout of rail and ship-based freight networks compared to road. In the analysis we use a recent Scandinavian freight demand model covering more than 800 zones. We find that the structural inelasticity is very significant - in particular for transportation over less than 500 km. Moreover, the inelasticity varies greatly with commodity groups and between OD pairs, and it depends strongly on the port and rail infrastructure. The results suggest that pure charging instruments (road pricing for trucks) in many regions will have limited mode substitution impacts. However, if combined with structural changes in terms of improved infrastructure for rail and ship, impacts may be greater.  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