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   1903篇
  免费   57篇
  国内免费   34篇
财政金融   342篇
工业经济   47篇
计划管理   360篇
经济学   331篇
综合类   282篇
运输经济   17篇
旅游经济   42篇
贸易经济   229篇
农业经济   96篇
经济概况   240篇
信息产业经济   5篇
邮电经济   3篇
  2024年   1篇
  2023年   26篇
  2022年   12篇
  2021年   24篇
  2020年   60篇
  2019年   41篇
  2018年   37篇
  2017年   38篇
  2016年   52篇
  2015年   40篇
  2014年   104篇
  2013年   166篇
  2012年   126篇
  2011年   195篇
  2010年   166篇
  2009年   111篇
  2008年   185篇
  2007年   128篇
  2006年   125篇
  2005年   82篇
  2004年   67篇
  2003年   48篇
  2002年   31篇
  2001年   30篇
  2000年   13篇
  1999年   14篇
  1998年   2篇
  1997年   3篇
  1996年   6篇
  1995年   14篇
  1994年   14篇
  1993年   12篇
  1992年   6篇
  1991年   2篇
  1990年   5篇
  1988年   1篇
  1985年   4篇
  1983年   3篇
排序方式: 共有1994条查询结果,搜索用时 46 毫秒
41.
This paper examines whether corporate payout choices (dividends or share repurchases) are associated with intercorporate ownership in a firm. Using the System for Electronic Document Analysis and Retrieval (SEDAR) and the Inter‐Corporate Ownership (ICO) database from Statistics Canada, I find that intercorporate ownership is positively associated with a firm’s propensity to pay dividends and negatively associated with a firm’s propensity to repurchase shares. The findings are robust to the endogeneity of intercorporate ownership and the inclusion of various control variables such as firm size, risk, liquidity, growth, and profitability.  相似文献   
42.
This paper examines how issuing an innovative financial instrument called contingent convertible bond (CoCo) may enhance bank's solvency in comparison to issuing a conventional bond. CoCos convert automatically into common equity or have a principal write-down when bank's regulatory capital fails to meet a predetermined level. They have been invented and put into legislation with an objective to absorb losses thus preventing institutions from bankruptcy. From the standpoint of an issuer CoCos bring about two counter effects regarding his solvency: on one hand they recapitalize a bank approaching insolvency on the other hand CoCos pay much higher coupon comparing to conventional bonds. In our model a bank has two funding alternatives: either to issue CoCos or conventional bonds. We measure issuer's default risk using the concept of Value-at-Risk (VaR) and Expected Shortfall (ES). We conclude that CoCos have the potential to strengthen the resilience of the issuer on the condition that the probability of conversion triggering is higher than the VaR's significance level. Our findings can be helpful to the policymakers and banks to better understand the impact of CoCos on issuer's solvency.  相似文献   
43.
在分类应用的过程中,经常会出现新的类别,导致数据分布发生显著变化,使得原分类模型不再适用。如何识别新的类别使分类模型能适应其出现已经成为一个亟需解决的问题。本文提出基于特征增量的SVDD(支持向量数据描述)新类识别方法。该方法在SVDD算法的基础上,通过增加新特征,扩大特征空间维度从而提高模型对于新类的识别能力。在多个数据集上的实验结果表明,该方法能有效识别新类,使更新后的模型具有更高的准确度。  相似文献   
44.
我国在由计划经济向社会主义市场经济转型的过程中,个人自致性因素对阶层地位获得的影响日益突出。在众多的个人自致性因素中,职业技能培训是最重要的个人自致性因素之一,其对阶层地位获得发挥着举足轻重的作用。笔者通过实证研究证实:职业技能培训对农民阶层地位的获得存在显著影响。为了更好地推进农民的职业技能培训,一方面要充分发挥政府、企业、社会组织和农民个人等各个方面在农民职业技能培训中的作用,建立社会协同培训的格局;另一方面,在开展农民职业技能培训内容的设计和实施时,必须充分考虑到不同培训对象的不同需求,增加职业技能培训的针对性。  相似文献   
45.
Agricultural applications of nanotechnology are at a relatively early stage and little is known about consumer responses to the technology. Canadian consumer responses to food nanotechnology are examined through the lens of the Food Value Scale. Data from a survey of Canadian consumers are used to evaluate the relative importance of eleven food values to food purchase decisions. We find that taste, safety, nutrition, and price are among the most important food values to Canadians, however, consumers exhibit considerable heterogeneity with respect to the priority placed on these values. A discrete choice experiment (DCE) explores the effect of food values on choice behavior. The DCE is positioned as a sliced apple product with non-browning and antioxidant-enhanced features introduced through the use of nanocoating or a conventional coating method. Random parameters logit (RPL) and latent class models (LCM) confirm the existence of significant preference heterogeneity. The LCM identifies three classes of consumers: “supporters,” “doubters,” and “opponents” who differ in their reaction to nanotechnology and in the relative importance placed on food values such as naturalness, novelty, and convenience. The analysis shows that food values provide additional insights into consumers’ food choices and their attitudes toward novel food technologies.  相似文献   
46.
We investigate motivational drivers of financial advisor use, accounting for investor heterogeneity, with the goal of helping institutions increase the use of financial advisor services. The results from a latent class choice model reveal two distinct segments that differ in their approach to the financial advice decision. While higher levels of risk tolerance, trust, and self-efficacy increase financial advice use for both segments, albeit at much higher propensities for Segment 1, personality only matters for Segment 1. Moreover, their regulatory focus differs with Segment 1 being promotion and Segment 2 being prevention focused. Using these results, we offer suggestions for marketing strategies.  相似文献   
47.
我国证券监管所采用的终身证券市场禁入,剥夺了行为人参与证券市场的资格或机会,需要接受“正当性”的拷问。基于公共利益理论、利益平衡分析等论证证券市场禁入的正当性,未深入到行为人自身内部寻找正当性根据,均存在一定的局限性。证券市场禁入的正当性基础,应当回归到行为人自身,注重行为人自身“适合”参与证券市场的可期待性。终身证券市场禁入具有鲜明的“惩罚性”,面临着责任追究无边界等正当性难题。化解这一难题的路径是去除证券市场禁入的“惩罚性”,允许被禁入对象“救赎”自己,建立终身证券市场禁入的适时退出程序,明确终身证券市场禁入的退出标准,动态跟踪监测被禁入对象个体情况,适时赋予其参与证券市场的“第二次机会”。  相似文献   
48.
This article interrogates the nature of political agency deployed at sites of market‐oriented water reforms. It presents a case study from Bangalore, India of a water project mandating significant ‘beneficiary’ cash contributions from lower‐middle‐class dwellers for the capital cost of extending piped water to the city's peripheries. Drawing on quantitative and ethnographic data, it illustrates why property owners who lack formal water access and land tenure — groups referred to in this article as the ‘peripheralized middle class’ — consent to paying for pipes rather than resist all together despite the high cost involved. It argues that far from reflecting an internalization of a ‘willingness to pay’ or ‘stakeholder’ ethos celebrated by development practitioners today, payment for water provides an insurgent means to bargain for greater symbolic recognition, respectability and material benefits from the state. In particular, payment for pipes enables peripheral dwellers to strengthen their claims to secure land tenure in an era of exclusionary and punitive spatial policies. Payment thus comprises a terrain of contested meaning making and political struggle, at the heart of which lie the stakes of urban citizenship. In documenting the process by which property related interests and tenure claims are advanced under a scenario of reforms, this article contributes to Gramscian political‐ecological conversations on subaltern political agency and the lived character of hegemony in urban environments.  相似文献   
49.
We investigate how new information impacts quote clustering in the bond market. We find that clustering, along with quote activity, price volatility and bid-ask spreads, increases sharply in the minutes following releases of macroeconomic news. Each returns to near-normal levels within the hour. Effects are strongest for more liquid on-the-run notes and for the announcements typically associated with substantial information flow. The strong positive comovement of clustering, quote activity, price volatility, and bid-ask spreads supports the conclusion that innovations of these variables are endogenous to the arrival and incorporation of information into prices.  相似文献   
50.
Seeking to understand factors affecting innovation diffusion, research has increasingly focused on process, actors and activities. After two decades of research, however, a systematisation of these three sets of studies is still lacking. Thus, this paper contributes to the existing literature providing a comprehensive framework of factors affecting innovation diffusion between organisations. Specifically it evidences phases of innovation diffusion process, clarifies the role of innovator, adopters and intermediaries and evidences actions that policy-makers can implement to support it.  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