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   9083篇
  免费   393篇
  国内免费   158篇
财政金融   1549篇
工业经济   227篇
计划管理   1360篇
经济学   1786篇
综合类   1590篇
运输经济   40篇
旅游经济   173篇
贸易经济   1149篇
农业经济   443篇
经济概况   1317篇
  2024年   24篇
  2023年   189篇
  2022年   133篇
  2021年   250篇
  2020年   328篇
  2019年   291篇
  2018年   220篇
  2017年   277篇
  2016年   271篇
  2015年   282篇
  2014年   732篇
  2013年   1011篇
  2012年   879篇
  2011年   820篇
  2010年   716篇
  2009年   579篇
  2008年   647篇
  2007年   476篇
  2006年   445篇
  2005年   347篇
  2004年   225篇
  2003年   145篇
  2002年   104篇
  2001年   77篇
  2000年   42篇
  1999年   17篇
  1998年   22篇
  1997年   14篇
  1996年   6篇
  1995年   8篇
  1994年   5篇
  1993年   6篇
  1992年   4篇
  1991年   4篇
  1990年   1篇
  1989年   2篇
  1988年   4篇
  1987年   2篇
  1986年   1篇
  1985年   6篇
  1984年   10篇
  1983年   2篇
  1982年   4篇
  1981年   2篇
  1980年   1篇
  1979年   3篇
排序方式: 共有9634条查询结果,搜索用时 85 毫秒
41.
Although Colombia, Mexico, Peru, and Uruguay show similar empirical patterns in terms of time women devote to unpaid work, they also present important variations in how unpaid work is distributed between men and women. Using time-use surveys for the 2007–10 period, this study finds a uniform pattern across the four countries regarding the main individual-level variables related to the allocation of unpaid work. When decomposing the gender gap in hours devoted to unpaid work, most of the difference cannot be attributed to variations in observable characteristics of men and women: the unexplained part of the gap is the dominant part. Results suggest that both the strength of traditional gender roles and existing welfare architecture are relevant factors in understanding variations in how unpaid work is distributed between men and women in these four countries. The results reaffirm that powerful interventions are needed to shift gender norms about unpaid work.  相似文献   
42.
With particular reference to Asia–Pacific countries, the present study examines how access to finance and financial development affects firms’ ability to enter export markets. Using firm‐level data from the World Bank Enterprises Survey, we found that access to finance plays a significant role in improving firms’ ability to export. In addition, development of the financial sector fosters export market entry. Among the financial development indicators, reach of the banking sector variable is most prominent. The present study suggests that improvements in access to finance and financial development (increases in the reach of the banking sector) enable firms operating away from capital or major cities to enter export markets easily. The present study supports policy intervention to strengthen access to the financial sector, which would encourage firms to export, and to facilitate export market entry for remotely located firms.  相似文献   
43.
The Chinese gold market is rapidly rising to global prominence in the recent decades. The paper reviews the history of the gold market in China and its liberalisation process amid the country’s opening to the outside world. Details of the current market structure and its main business are presented. Global impacts of the rise of the Chinese gold market are discussed.  相似文献   
44.
2018年以来中国经济平稳运行,物价水平稳定,就业形势整体向好,经济增长质量稳步提升。不过,当前中国经济仍然面临一定的下行压力,尤其需要警惕消费增速过快下滑、宏观税负进一步加重、民间投资复苏乏力、部分企业效益状况显著恶化、去杠杆过程中金融体系不稳定性加剧等主要风险点。此外,杠杆率高企是现阶段中国经济面临的突出问题,而且中国的杠杆率在不同部门之间以及各部门内部均体现出明显的结构性特点。为此,中央在2018年专门提出了“结构性去杠杆”的新思路。在“结构性去杠杆”稳步推进的大背景下,宏观政策既要积极应对经济下行压力,谨防去杠杆带来的经济增速超预期下滑风险,又要激发经济内生增长动力,促使经济实现长期可持续发展和“高质量发展”。  相似文献   
45.
We present a novel lens on the presence and impact of qualified foreign institutional investors (QFII) in top shareholdings of the non-financial domestically listed Chinese ‘A’ share firms. The initial results suggest that the presence of a QFII as a top shareholder in these companies is associated with their better performance, using both Tobin’s Q and ROA as the performance measures. Our models include variables representing corporate governance mechanisms, foreign legal person shares, a proxy for international affiliations and a number of time-variant firm characteristics. Economically, the coefficient of impact on the market measure is the more significant, while the effect of having a QFII in top shareholdings on both performance measures is empirically significant. Previously, studies have often ignored the potential for reverse causality beyond using lagged regressors. This is problematic. Therefore, we follow up with a 2SLS instrumental variables and system GMM model to further mitigate this potential and find the empirical relationship holds. Contrary to earlier work on QFIIs and governance post-implementation of the QFII scheme, the findings from our models suggest that the presence of a QFII top shareholder augments market performance holding equal existing corporate governance mechanisms and other controls.  相似文献   
46.
为了分析管理层盈余预测对盈余不对称及时性之间的关系,即发布消息的时间点和内容分类对盈余不对称及时性的影响,用Basu模型分段实证检验盈余预测对盈余不对称及时性的影响、正(负)向盈余预测与不对称及时性的关系,以及当期发布的盈余预警对盈余不对称及时性的影响。结果表明,不对称及时性对公司发布的未来盈余的影响不显著,公司发布预期盈余的时间及时性主要集中在负向盈余意外,这与价格引导盈余引起更多的未来盈余预测的向下有偏的不对称及时性系数相一致,当期发布盈余预警会降低盈余与收益的不对称及时性。管理层发布内部盈余预测,有助于缓解与外部信息使用者之间的信息不对称,满足利益相关者的决策需求,进而有助于促进证券市场向半强式有效市场转化。  相似文献   
47.
This research attempts to exemplify whether pets ascribed as possessions can be regarded, as part of our selves, i.e., a metaphoric relationship with pets, by examining the dynamic relationship between beliefs, extended self, self-identity concerning possessions, and psychological ownership.This study extends the literature by developing a conceptual model asserting that probabilities of purchase for pets, in particular, are contingent on possessions and the extended self. A sample of 326 pet owners was selected, and by using SEM, the direct and indirect relationships were explored. Self-identity and beliefs were significantly associated with psychological control and the extended self, however, beliefs were negatively related to the probabilities of purchase. The extended self and the psychological ownership demonstrated mediating relationships. The study contributes to an understanding of the theoretical relationship between the role of possessions and provides scholars and retail practitioners with an understanding of probabilities of purchase for pet fashions.  相似文献   
48.
The authors investigate the extent to which central customer-based brand equity dimensions (Differentiation, Relevance, Esteem, Knowledge, and Energy) influence a firm’s systematic risk (i.e., beta) during both market upturns and downturns. The results demonstrate that aggregating upside and downside beta or different dimensions of brand equity masks the true associations which can be seen only in the disaggregate analyses. The authors find that Relevance and Knowledge play roles as stabilizers, showing negative relationships with both upside gains and downside risk, while Esteem plays the role of protector, showing a negative relationship with only downside losses and not influencing upside gains; Energy acts as a booster, being positively associated with a firm’s potential gains in a period of market growth without increasing the firm’s expected losses during a bad market. The positive relationship of Energy with aggregate risk could be misleading as it hides the beneficial effect of Energy as a booster. The authors also find that Relevance is the most important consideration when people make choices in bad market situations, while Energy becomes the most crucial deciding factor in good market situations. Taking advantage of the multidimensional constructs of brand equity while allowing for the asymmetrical characteristics of risk enables managers to capture the differential role of each brand equity dimension in influencing firm risks, which leads to more sophisticated strategic decisions regarding risk management. In addition to general brand strategy, the authors provide tailored brand strategies to firms from different industries or with different financial characteristics.  相似文献   
49.
This research explores the physical infrastructure and flight consolidation efficiency drivers of Eurasian airports regarding their infrastructure and movement productivity levels. A novel Fuzzy Double-Frontier Network DEA (FDFNDEA) model is proposed to investigate the relationship between desirable (freight and passenger turnovers) and undesirable (pollutant emission levels due to aircraft movements) outputs against the respective infrastructure usage, fuel consumed, and movements performed at each of the 23 Eurasian airports from 2000 to 2018. This balance between desirable and undesirable outputs emerges spatially and temporally due to the evolution of the airport system's productive resources at each one of the Eurasian countries over the period observed. Shannon's entropy is used as the cornerstone to quantify the input and output vagueness of this evolution in Triangular Fuzzy Numbers (TFN), thus allowing the accurate building of alternative optimistic and pessimistic double-frontier efficiency. Differently from previous research, Shannon's entropy is the key for measuring input and output vagueness levels in light of the maximal entropy principle. This principle states that the distribution that best represents the current state of knowledge is the one with largest entropy. Maximal entropy yields bias-free decision-making in the sense that the input/output distributional profiles for Eurasian airports contain the maximal possible heterogeneity, working as a robust or best/worst-case scenario against eventual unconsidered assumptions. Hence, optimistic and pessimistic Malmquist Productivity Indexes (MPI) for overall and each stage productivity results are subsequently regressed against contextual variables related to airport characteristics and regional socio-demographic and economic indicators of each Eurasian country using bootstrapped Cauchy regressions. The findings revealed the spatial heterogeneity of productivity factors and airport performance across Eurasia. Results also demonstrated the negative impact of income inequality and the positive impact of private participation on technological progression in the Eurasian airport industry.  相似文献   
50.
This paper examines the aggregation of preferences with a finitely additive measure space of agents. We consider three types of non-dictatorship axioms: non-dictatorship, coalitional non-dictatorship, and atomic non-dictatorship. First, we show that the existence of an atom is a necessary and sufficient condition for the existence of a social welfare function that satisfies weak Pareto, independence of irrelevant alternatives, and coalitional non-dictatorship. Second, we simultaneously impose non-dictatorship and coalitional non-dictatorship, and specify a necessary and sufficient condition for the finitely additive measure that guarantees the compatibility among the axioms. Third, we impose all non-dictatorship axioms and show that the corresponding measure is extremely restricted.  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