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   4989篇
  免费   294篇
  国内免费   69篇
财政金融   895篇
工业经济   105篇
计划管理   605篇
经济学   1019篇
综合类   832篇
运输经济   46篇
旅游经济   83篇
贸易经济   681篇
农业经济   501篇
经济概况   585篇
  2024年   5篇
  2023年   74篇
  2022年   54篇
  2021年   119篇
  2020年   204篇
  2019年   163篇
  2018年   122篇
  2017年   174篇
  2016年   182篇
  2015年   154篇
  2014年   364篇
  2013年   484篇
  2012年   388篇
  2011年   466篇
  2010年   346篇
  2009年   312篇
  2008年   372篇
  2007年   284篇
  2006年   288篇
  2005年   205篇
  2004年   147篇
  2003年   112篇
  2002年   90篇
  2001年   71篇
  2000年   39篇
  1999年   32篇
  1998年   23篇
  1997年   17篇
  1996年   24篇
  1995年   6篇
  1994年   11篇
  1993年   5篇
  1992年   7篇
  1991年   4篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1984年   1篇
排序方式: 共有5352条查询结果,搜索用时 46 毫秒
21.
Following the approach of interpolation, this paper proposes the multiple exponential decay model to fit yield curves for both the U.S. TIPS market and the conventional Treasury security market. Several estimation methods, including the unconstrained/constrained nonlinear minimization, quadratic programming, and the iterative linear least squares, are applied to estimate the unknown parameters according to different curve‐fitting purposes. Comparisons between the proposed model and the alternatives show that the multiple exponential decay successfully (1) adapts to a variety of shapes associated with yield curves, (2) (partially) keeps in line with the economic interpretations of Nelson–Siegel summarized by Diebold and Li ( 2006 ), and (3) dominates the competing models in curve‐fitting performance measured by mean fitted‐price errors over the sample period. In addition, the exact specification of a nonparametric interpolation model is pinned down by applying three statistical tools, which enable us to jointly take into account validity, optimality, and parsimoniousness of the proposed model.  相似文献   
22.
Behavior often deviates from standard predictions because individuals evaluate the consequences of choices separately (i.e., narrow bracketing) rather than jointly. The main existing theories classify different narrow bracketing phenomena as either (i) choice errors caused by cognitive limitations, or (ii) strategies to achieve self‐control. Using an online experiment, we find consistent evidence for theory (ii): mental budgets and narrow goals are related to each other and to measures of self‐control, but are distinct from other forms of narrow bracketing. Evidence for the complementary theory (i) is less consistent: few choice bracketing phenomena are related to each other and to cognitive skills.  相似文献   
23.
[目的]乡村振兴战略是贯彻新发展理念,建设现代化经济强国的重大战略之一。农村产业兴旺,农民生活富裕是乡村振兴战略的重要目标。农村一、二、三产业融合发展是实现乡村产业振兴,农民增收的重要途径。农村人力资本状况关系到农村产业融合的人才建设,关系到农民增收的实现。文章力图探究乡村振兴战略下农村产业融合、人力资本与农民增收间的相互作用关系,以期为乡村振兴战略的实现提供政策建议。[方法]以浙江省为例进行实证分析,通过建立PVAR模型,采用格兰杰因果关系及面板数据模型进行检验。[结果]农村产业融合及人力资本构成农民增收的格兰杰因果关系,两者都对农民增收产生显著影响,且人力资本影响效应更大。农民增收及人力资本对农村产业融合没有起到相应的促进作用。[结论]在实证分析的基础上,从加大人力资本投入、培育农村产业融合复合型人才及加强宣传引导工作等方面提出相应的政策建议促进农村产业融合。  相似文献   
24.
以北京市平原造林工程为例,利用典型项目区调查数据建立结构方程模型,探讨影响退耕农户行为意向的主要因素。结果表明:农户综合素质、家庭经济基础和农户土地依赖性对农户满意度和农户行为意向具有显著正向影响;同时,农户综合素质、家庭经济基础和农户土地依赖性还会通过农户满意度对农户行为意向产生影响。据此,后续城市造林过程中应进一步加强对农户满意度的服务工作,同时根据个体农户特征,对被征地农户在再就业、技能培训、农地补偿等方面开展更具针对性的服务工作。  相似文献   
25.
We ask whether credit rating agencies receive higher fees and gain greater market share when they provide more favorable ratings. To investigate this question, we use the 2010 rating scale recalibration by Moody's and Fitch, which increased ratings absent any underlying change in issuer credit quality. Consistent with prior research, we find that the recalibration allowed the clients of Moody's and Fitch to receive better ratings and lower yields. We add to this evidence by showing that the recalibration also led to larger fees and to increases in the market shares of Moody's and Fitch. These results are consistent with critics’ concerns about the effects of the issuer‐pay model on the credit ratings market.  相似文献   
26.
本文基于重男轻女观念的视角,探究地区文化是否会影响当地家族企业的机会主义动机。本文研究发现,重男轻女地区的家族企业更愿意安排男性家族成员担任CEO等重要职位,更多地引入家族成员参与企业经营。由于担心这种机会主义行为,外部投资者对当地家族企业的投资更为谨慎。本文从地区文化的视角阐释了家族企业的异质性,推动了已有研究从“家族企业与非家族企业有何不同”向“不同地区文化下的家族企业间有何不同”层面深入。  相似文献   
27.
In this paper, we study the relationship between different proxies of firm‐level markups and trade status, using balance sheet information linked to detailed trade data from Hungary between 1995 and 2003. We find that importing is strongly positively correlated with markup measures, both across and within firms. We argue that this correlation can reflect three channels: self‐selection, higher physical productivity resulting from access to a larger variety of inputs, and quality upgrading based on high‐quality imported intermediate inputs. We present evidence for the relevance of the third channel by showing that importers’ markup premium is higher when inputs arrive from developed countries, and that importing is correlated with higher‐quality (price‐adjusted revenue) exports. We find no robust evidence for exporter premium when controlling for importing. We argue that the non‐existent exporter premium might result from the stronger competition in export markets relative to domestic markets.  相似文献   
28.
This study aims to explore the empirical validity of the real interest rate parity (RIP) hypothesis for East Asian countries using Japan as the base country. To this end, we employ the recently proposed unit root tests of Christopoulos and Leon-Ledesma that account for both multiple smooth structural breaks of unknown form and nonlinear mean reversion in the series. Our empirical results uncover overwhelming evidences in favor of the RIP hypothesis for the whole countries in our sample. More specifically, through a Fourier approximation, it is observed that all real interest rate differentials display a mean-reverting behavior around an infrequently smooth-breaking mean, with the breaks being in accordance with the financial reforms and economic crises witnessed by the countries. Moreover, the degree of mean reversion appears to vary nonlinearly with the size of real interest rate appreciations and depreciations.  相似文献   
29.
This paper enquires the dynamics of current account and capital account in Sri Lanka for the period 2001:Q1 to 2016:Q1 and also examines the role of some policy variables such as exchange rate and interest rate in this dynamics. Estimated autoregressive distributed lag (ARDL) bound testing approach to cointegration followed by error correction representation of the ARDL model have found that current account is caused by capital account and exchange rate, where capital account causes to produce a deficit in current account. In the dynamic adjustment of current account due to exchange rate, an evidence of J-curve phenomenon is noticed. Capital account is neither caused by current account nor by exchange rate but interest rate has a positive impact on it. Robustness of these findings is testified by the vector autoregression model, Wald test of Granger causality followed by an impulse response analysis and a variance decomposition analysis. These analyses, in addition, establish a negative impact of interest rate on current account. With the best of knowledge this is the first study that reveals the dynamics of current and capital account of Sri Lanka. Such a dynamics is critical from the policy perspective. Policy makers should caution before capital account liberalization.  相似文献   
30.
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   
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