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   17918篇
  免费   1140篇
  国内免费   298篇
财政金融   2464篇
工业经济   794篇
计划管理   2640篇
经济学   4519篇
综合类   2542篇
运输经济   145篇
旅游经济   280篇
贸易经济   2165篇
农业经济   1471篇
经济概况   2336篇
  2024年   17篇
  2023年   440篇
  2022年   420篇
  2021年   594篇
  2020年   828篇
  2019年   549篇
  2018年   470篇
  2017年   636篇
  2016年   569篇
  2015年   659篇
  2014年   1080篇
  2013年   1548篇
  2012年   1261篇
  2011年   1561篇
  2010年   1151篇
  2009年   1134篇
  2008年   1346篇
  2007年   1161篇
  2006年   1064篇
  2005年   743篇
  2004年   522篇
  2003年   375篇
  2002年   269篇
  2001年   253篇
  2000年   160篇
  1999年   107篇
  1998年   81篇
  1997年   69篇
  1996年   56篇
  1995年   38篇
  1994年   27篇
  1993年   26篇
  1992年   19篇
  1991年   12篇
  1990年   4篇
  1989年   11篇
  1988年   3篇
  1987年   1篇
  1986年   2篇
  1985年   21篇
  1984年   27篇
  1983年   23篇
  1982年   12篇
  1981年   6篇
  1980年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Due to the popularity of online travel agency (OTA) booking platforms, OTAs display diverse information, including features of products, on their websites. Based on choice architecture literature, this study aimed to examine the effect of product quality and price sorting (vs. non-sorting) on extreme option choice aversion and identify the moderating effect of displays that made it difficult to read information. The results of a series of four experimental studies (total n = 2838 online panel members) demonstrated that the tendency to choose the non-extreme or middle-attributed options was stronger when quality and price were displayed sorted (vs. non-sorted). It was theorized that easy comparison of multiple options leads to decision-making. The positive effect of quality and price sorting on extreme option choice aversion was significantly reduced when customers had difficulty reading the displayed information.  相似文献   
2.
This article investigates how uncertainty impacts the effect of monetary policy surprises on stock returns. Using high-frequency US data, we demonstrate that stock markets respond more aggressively to monetary policy surprises during periods of high uncertainty. We also show that uncertainty asymmetrically influences the transmission of positive and negative monetary policy surprises to stock market prices. The amplifying effect of uncertainty is found to be stronger for expansionary shocks than for contractionary shocks. Our robustness analysis confirms that financial uncertainty has a significant role in shaping the influence of monetary policy on the stock market.  相似文献   
3.
以并购事件为联结,设置企业社会责任、企业价值等主要变量,实证检验转让方企业社会责任与并购完成后主并方企业社会责任之间、主并方企业社会责任与其企业价值之间、并购前转让方企业社会责任与并购后主并方企业价值之间等三对关系。结果显示,上述三对关系均为显著正相关,且在并购前转让方企业社会责任与并购完成后主并方企业价值之间的关系中,并购完成当年主并方企业社会责任起到中介作用。  相似文献   
4.
This paper critiques the emergence of Dangote Cement as the dominant player in cement manufacturing in Nigeria. It argues that the changed economic environment General Obasanjo met when he became president of Nigeria for a second time in 1999 made it difficult for him to continue the nationalisation policies and the expansion of government involvement in several spheres of economic activity that he helped to promote in the 1970s. The realisation that this strategy, which created numerous crony capitalists, was unsustainable resulted in Obasanjo allying with Dangote and promulgating the Backward Integration Programme (BIP) for the local cement industry. This made it possible for Dangote to risk aggressive investment in the capital-intensive cement production business. This strategy achieved public good by rapidly making Nigeria, an oil rent- and import-dependent economy with enormous limestone reserves, self-sufficient in cement production.  相似文献   
5.
[目的]为了解决甘肃中部安定区、陇西县、渭源县、临洮县、榆中县和会宁县的人畜饮水、工业用水、生态用水及农业灌溉用水问题,引洮工程通过九甸峡水利枢纽抬高水位将黄河上游洮河支流水资源引入受水区。在受水区,在调水增加本区供水总量的同时,相应增加了增量水资源使用后带来的废污水,客观上对污染治理工作水平提出了更高要求,轻视排污问题将加剧受水区乃至下游的水系污染程度,影响受水区经济社会的可持续发展。[方法]文章采用文献研究法从理论上探讨了环境容量、排污权及其关系。采用定额计量法计算了调水带来的COD和氨氮增量。[结果]调水使得受水区COD和氨氮每年分别增加6 914. 30t和1 440. 48t。就COD而言,受水区平均排放量占该区环境容量的51. 12%,似有较多的容量结余,但区内排放极不平衡,榆中和会宁已经超排。就氨氮而言,受水区平均排放量将占该区环境容量的151. 55%,总体超排很严重。区内除临洮以外,其余5县区均超排,其中,榆中和会宁超排1倍以上。[结论]排污量是假定增量污水符合二级排放标准的前提下计算的,如果处理率低、排放达标率低,则超排现象会更为严重。对此,要从宏观上进行综合治理,诸如完善政府、社会与市场共同治污机制、排污权配置的过渡性制度安排、污水处理企业改革及引导受水区进行产业结构调整等。  相似文献   
6.
We characterize welfare maximizing capital requirement policies in a quantitative macrobanking model with household, firm, and bank defaults calibrated to Euro Area data. We optimize on the level of the capital requirements applied to each loan class and their sensitivity to changes in default risk. We find that getting the level right (so that bank failure risk remains contained) is of foremost importance, while the optimal sensitivity to default risk is positive but typically smaller than under Basel internal ratings based (IRB) formulas. Starting from low levels, savers and borrowers benefit from higher capital requirements. At higher levels, only savers prefer tighter requirements.  相似文献   
7.
采用博弈论的方法,考虑声誉效应对博弈双方效用、策略的影响,建立信号博弈模型,并分析精炼贝叶斯均衡,证明声誉水平、对声誉的态度以及技术市场价值的高低是影响建立合作关系的重要因素。探讨双方建立合作关系的行为策略,提出实现合作达成双赢的建议。  相似文献   
8.
With sluggish external demand and increasing trade protectionism by the USA and the European Union, China is facing severe challenges in implementing its deeper, ongoing reforms. To respond actively to such challenges, the Communist Party of China's 19th National Congress proposed to “promote a new pattern of all‐round opening up.” In particular, the establishment of free trade ports is considered an important means to realize deeper integration with the world economy. This paper discusses the background, the motivation, the possible challenges as well as a feasible path for the successful implementation of free trade ports in China. Based on the international experience, the construction of free trade ports in China requires freer trade in goods, high mobility of talent and free capital flow.  相似文献   
9.
This article analyzes the career and contributions of Roy Blough (1901–2000) as a case study of Wisconsin institutionalism in government policy-making at midcentury. As a faculty member at Cincinnati, Chicago and Columbia, editor of the National Tax Journal, director of the research division of the U.S. Treasury and member of the Council of Economic Advisors, Blough played a significant role in the development of fiscal policy. The article also considers Blough’s contributions to tax policy and his views on Keynesian public finance. It further identifies the contributions of Wisconsin institutionalism to modern fiscal policy.  相似文献   
10.
Social scientists have developed several theories for understanding or evaluating policy change over time. Since all costs or benefits are not internalized owing to positive transaction costs, policymaking is always implemented under cost underestimation conditions and, therefore, is imperfect. I call this trait policy failure in this article. Furthermore, I show that a new framework combining the social costs approach and the legal/economic approach in institutional economics is suitable and can be applied to evaluating how past policy failures affect present policy, providing as an example the Fukushima nuclear disaster in Japan.  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