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   17199篇
  免费   661篇
  国内免费   295篇
财政金融   3240篇
工业经济   919篇
计划管理   2167篇
经济学   3524篇
综合类   2354篇
运输经济   119篇
旅游经济   257篇
贸易经济   2600篇
农业经济   997篇
经济概况   1977篇
信息产业经济   1篇
  2024年   13篇
  2023年   271篇
  2022年   226篇
  2021年   402篇
  2020年   618篇
  2019年   500篇
  2018年   428篇
  2017年   490篇
  2016年   504篇
  2015年   413篇
  2014年   887篇
  2013年   1450篇
  2012年   1137篇
  2011年   1345篇
  2010年   1020篇
  2009年   1058篇
  2008年   1301篇
  2007年   1157篇
  2006年   1208篇
  2005年   936篇
  2004年   739篇
  2003年   572篇
  2002年   420篇
  2001年   346篇
  2000年   244篇
  1999年   137篇
  1998年   92篇
  1997年   70篇
  1996年   41篇
  1995年   32篇
  1994年   17篇
  1993年   12篇
  1992年   14篇
  1991年   15篇
  1989年   4篇
  1988年   1篇
  1986年   1篇
  1985年   7篇
  1984年   9篇
  1983年   8篇
  1982年   5篇
  1981年   3篇
  1979年   1篇
  1978年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
There is growing concern that farmland transfers lead to less agricultural investment, which may adversely affect agricultural productivity growth in China. Prior research has primarily focused on the differences between owned cultivated land and rented plots, but little is known about how farmland transfers between relatives, which are popular in rural China, specifically affect agricultural investment. In this paper, we present a conceptual framework of transaction cost economics to compare different contracting strategies in China's farmland rental markets. As farmland rental markets in China are immature, land transfer between relatives establishes bilateral governance, which has the advantage of addressing the opportunistic activities of both parties and can ultimately increase investment by tenants. Based on data from two waves of household surveys, we empirically examine the impact of bilateral governance on the application of organic fertilizer, an indicator for agricultural investment. Our findings show that apart from economic factors, kinship is important to the functioning of farmland rental markets in rural areas.  相似文献   
42.
The disproportionate concentration of healthcare professionals in urban areas is a concern in many countries, including Canada. A need to address this rural care gap has driven a large number of government led initiatives worldwide over the years. This paper presents a model that can be used as a tool to examine the efficacy of such policies on the workforce distribution in the long term. A small system dynamics model is employed to simulate the current and future distribution of general physicians at a jurisdictional level. The model represents the transition of general practitioners to provide insight into the dynamics of care provision over time. The movement, and competition, between rural and urban areas is modeled to enable detailed exploration of the ability for proposed measures to alleviate the care gap in the future. Among the tested policies are such commonly used initiatives as financial incentives to rural professionals, promotion of medical education in rural areas, expansion of rural education programs and the engagement of international medical graduates etc. We demonstrate how the model can be used as a tool to determine an efficient and well-chosen combination of policies which can help alleviate the rural care gap in the future, given that some policies are more effective than others alone but also combined with other initiatives. The presented small system dynamics model is tested on Canada's reality, but its simple nature lends itself to easy application to other countries that experience a similar problem.  相似文献   
43.
We show theoretically how tax evasion is facilitated by informal credit market through tax deferment. Our model is empirically based. Using sham litigation, tax evaders earn a higher rate of return than the stipulated penalty rate for tax evasion while the government loses tax revenue. We propose an upfront part–payment of the disputed amount of tax as a solution to the form of tax evasion we describe.  相似文献   
44.
构建包含宏观经济政策不确定性指标、区域经济复杂度和上市公司特征变量“宏观-区域-企业”的实证面板数据,在理论分析经济政策不确定性对企业创新行为作用机理的基础上,以区域经济复杂度为视角,对经济政策不确定性与企业创新行为作用机制进行再检验。研究发现:经济政策不确定性对企业创新存在正向激励综合效应,同时,区域经济复杂度不仅能够促进企业创新行为,而且能够强化经济政策不确定性对企业创新行为的影响即抑制负向作用而强化正向作用。考虑内生性,通过替换核心变量检验稳健性以保证研究结论可靠,并且,研究企业特征发现,高科技企业和非高科技企业存在差异。  相似文献   
45.
In many emerging economies incumbent firms often use dubious means to deter entry of other firms. We analyze this scenario in a three‐stage game of entry deterrence. The incumbent has incomplete information about the entrant's costs but can increase this cost by resorting to unfair means (e.g. bribing a politician who harms the entrant). We completely characterize the optimal bribe and show that this depends on the “fairness index” and the “differentiation” parameter. We also show that zero bribes need not maximize welfare and market quality. Our results seem to be compatible with anecdotal evidence from emerging economies such as India.  相似文献   
46.
企业员工配置是企业内部管理的重要一环,经济政策不确定性是否会影响企业员工配置?本文以员工数量衡量企业员工配置,利用2010-2018年沪深A股上市企业数据和经济政策不确定性指数建立面板数据模型,考察经济政策不确定性对企业员工配置的影响,实证研究发现:经济政策不确定性会显著增加企业员工配置,且该影响经更换变量、调整样本容量以及内生性处理后依旧显著,该反应在还债能力较弱、盈利能力较差、股权制衡度较高、地区经济发展水平较低的企业中更为明显。文章的研究结论对于企业管理和宏观经济管控有一定的参考价值。  相似文献   
47.
“坚持总体国家安全观”是党的十九大报告关于国家发展战略的基本要求。以习近平同志为核心的党中央对应急管理工作高度重视,积极改革应急管理机构设置,加快构建“全灾种、全方位、全过程”的国家综合应急管理体制。同时,财政作为国家治理的基础和重要支柱,财政治理现代化是应急管理体制现代化的先决条件之一。目前我国应急管理的理论研究较少嵌入财政治理机制的影响。本文梳理了国内外应急管理的相关治理理论,结合我国应急管理体制改革的现实需求,分析了当前我国应急管理中财政治理的现状,构建了我国应急管理中财政治理的政策体系模型,并提出了相应财税政策建议。  相似文献   
48.
《中国林业经济》2021,(3):105-108
我国银行衍生产品体系是银行业重要的体系之一。通过我国期货交易细则、期权市场交易额等相关信息及数据的搜集,并将数据进行趋势化分析,从而对我国银行衍生产品体系的发展特点和问题进行研究,研究发现:我国银行衍生产品体系具有法律规范体系初步完善、风险评估体系国际化、衍生品市场发展迅猛等发展特点,但存在衍生品市场缺乏市场竞争力、不适应政策变化、不能自主定价等问题,提出了建立信息明确有序的交易体系、增强竞争力争取定价权益等建议。  相似文献   
49.
文章以2003-2017年A股非金融类上市公司为研究样本,考察经济政策不确定性对企业投资趋同行为的影响。研究发现,经济政策不确定性的升高会显著增强企业投资趋同行为,该影响效应在信息优势企业有所减弱,在资产不可逆程度较高企业有所增强。分行业检验发现,在管制性行业以及景气度较低行业中,经济政策不确定性对企业投资趋同行为的影响减弱。进一步研究发现,在经济政策不确定性不断攀升的背景下,实体投资趋同性会带来更为严重的金融化,特别是在行业实体投资总体趋于放缓的情况下,企业金融化现象更加严重。该研究为宏观经济波动下企业投资趋同行为提供了经验证据。  相似文献   
50.
U.S. President Donald J. Trump tweets frequently to communicate his thoughts to the public. We quantitatively evaluate the impact of Trump's China-related tweets on the Chinese stock market. We find that following Trump’s inauguration, his tweets with a positive sentiment significantly increase abnormal returns for the manufacturing industry in the Chinese stock market. Furthermore, an increase in the absolute value of his positive sentiment increases both the trading volume and volatility of the market. The positive effect is more pronounced for those subindustries with high exposure to international trade and stronger business relations with the United States than for other subindustries. The results are robust for various sensitivity tests.  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