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   2823篇
  免费   38篇
财政金融   490篇
工业经济   89篇
计划管理   583篇
经济学   725篇
综合类   218篇
运输经济   69篇
旅游经济   33篇
贸易经济   252篇
农业经济   112篇
经济概况   290篇
  2025年   6篇
  2024年   6篇
  2023年   35篇
  2022年   42篇
  2021年   89篇
  2020年   150篇
  2019年   100篇
  2018年   68篇
  2017年   82篇
  2016年   89篇
  2015年   62篇
  2014年   158篇
  2013年   248篇
  2012年   159篇
  2011年   255篇
  2010年   154篇
  2009年   181篇
  2008年   188篇
  2007年   212篇
  2006年   179篇
  2005年   105篇
  2004年   73篇
  2003年   55篇
  2002年   38篇
  2001年   31篇
  2000年   21篇
  1999年   15篇
  1998年   13篇
  1997年   7篇
  1996年   3篇
  1995年   3篇
  1994年   4篇
  1991年   1篇
  1990年   1篇
  1985年   5篇
  1984年   11篇
  1983年   7篇
  1982年   1篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1977年   1篇
排序方式: 共有2861条查询结果,搜索用时 15 毫秒
81.
    
A theoretical model of targeting in the public distribution system is set out. In any system of targeting there could be inclusion and exclusion errors. These errors could be reduced by search by the state. The state aims to minimise the costs of food administration subject to keeping the magnitude of the exclusion error bounded. Targeting involves a consideration of the objective poverty level, the official poverty level and the targeted poverty level by the state. The targeted poverty level could be less than the official poverty level if the extent of search is not adequate. The objective poverty level is an increasing function of the above poverty line issue price of food due to exclusion errors, a decreasing function of the procurement price of food and by definition the below poverty line issue price of food. The instruments in the hands of the state are the official poverty level, the above poverty line issue price for food, the procurement price of food and the extent of search. The comparative static implications of the model are set out.  相似文献   
82.
The contribution of agriculture to the welfare of society is determined by its economic, social and environmental performance. Although theoretical discussions can be found in the literature, few reports exist that integrate the social demand for multifunctional agriculture in the evaluation of the sustainability and the global welfare of society. This paper presents a methodology that combines economic valuation, integrated modelling, stakeholder analysis, and multi-criteria evaluation. It consists of three steps to determine: (1) social demands for multifunctional agriculture; (2) feasible technical alternatives available from the supply part of the market; (3) the net utility of alternatives for society measured as the change in social net benefit, i.e. the sum of changes compared to the current situation expressed in utility of market and non-market net benefits. Market net benefits are represented by their monetary value. Quality Function Deployment combined with Analytic Network Process (QFD/ANP) were used to estimate the non-market net benefits. The methodology is applied to the case study of a dairy-farming based agricultural landscape in the Northern Friesian Woodlands, The Netherlands. Social net benefit depended on land use, i.e. pasture management regimes on each of the agricultural fields and on presence or absence of hedgerows around the fields. Changes in market net utility were expressed in terms of changes for farmers, consumers and government. Changes in non-market net utility were expressed in terms of changes in landscape quality, nature value and environmental health for Dutch society as a whole, as estimated from European public surveys (Eurobarometer). The complete solution space defined by the market and non-market net benefits of landscapes with alternative patterns of land use was estimated to offer insight in the trade-off between market and non-market performance and enable selection of ‘icon’ landscapes to target or avoid. Improvement of the current landscape towards the social optimum would involve changes in pasture management resulting in higher gross margin for farmers, slightly relaxing current environmental restrictions, which could be reached at lower levels of subsidies in agri-environmental programs. In addition to such overall optimum the results demonstrate the trade-off between market and non-market benefits and the characteristics of current, utopian and dystopian landscapes. The approach provides an alternative to current economic valuation methods which focus on assessment of economic value as an input to analysis. Here, economic value emerges as the trade-off between market and non-market functions which is an output of the analysis.  相似文献   
83.
群体性事件近年来的扩大趋势已成为不争盼事实,这与中国当前正在经历的深层次全方位社会变迁有关。在有关群体性事件“新特点”的研究中,以网络为代表的新技术在群体性事件的诱发、促进、形成、激化抑或化解的过程中,开始扮演令人侧目的角色和作用。在一个信息化程度不断加深的中国,在一个网络社会,如果要想深化对群体性事件的进一步认识,如果要想实现更多群体性事件由“危”到“机”的转变,决不能忽略对群体性事件网络舆情的深入分析。本文在转型社会的历史场景下,通过对群体性事件中角色冲突的深入分析,从体制层面探求其产生和发展的社会根源,进而寻求解决群体性事件的制度化整合机制与协调机制;同时,文章分析了网络舆情在社会公共空间建设以及民意代表方面的特性。在此基础上,提出了基层政府应对群体事件网络舆情中存在的问题以及基层政府应对群体事件网络舆情的管理策略,并在转型社会的秩序构建层面做出了更深入的思考。  相似文献   
84.
农村公共产品供给地区差距的实证分析   总被引:1,自引:0,他引:1  
邓菊秋 《财经科学》2010,(2):116-124
本研究利用第二次全国农业普查数据,对我国东、中、西部农村公共产品供给的地区差距进行了实证分析,探讨了造成农村公共产品供给地区差距的原因,提出了通过改革农村公共产品供给制度、加大中央财政向中西部地区的转移支付力度、促进中、西部地区的经济发展等措施来缩小地区间基本公共产品和服务的差距,从而实现地区间基本公共产品和服务的均等化。  相似文献   
85.
    
In this paper, we modify the Djajić [Djajić, S., 1987. “Government Spending and the Optimal Rates of Consumption and Capital Accumulation,” Canadian Journal of Economics 20, 544–554.] model in such a way that government consumption expenditure provides utility to households via the total stock of government services rather than the government consumption flow alone. By using such a framework, we show that the optimality condition for the public service capital stock is the marginal rate of substitution between public service capital and consumption that equals the intertemporal marginal rate of transformation between the two goods. In addition, we show that the relationship between private consumption and public service capital in a household's utility plays an important role in determining the transitional behavior of relevant variables. We also examine the second-best government consumption expenditure policy. By contrast, in the standard flow specification, e.g., Turnovsky and Brock [Turnovsky, S.J. and Brock, W.A., 1980. “Time Consistency and Optimal Government Policies in Perfect Foresight Equilibrium,” Journal of Public Economics 13, 183–212.], Ihori [Ihori, T., 1990. “Government Spending and Private Consumption,” Canadian Journal of Economics 23, 60–69.], and Turnovsky and Fisher [Turnovsky, S.J. and Fisher, W.H., 1995. “The Composition of Government Expenditure and its Consequences for Macroeconomic Performance,” Journal of Economic Dynamics and Control 19, 747–786.], the second-best government consumption expenditure is decided on the basis that the marginal utility of consumption is equal to the discounted sum of the marginal utility of the government's flow spending.  相似文献   
86.
This paper proposes an equilibrium matching model for developing countries’ labor markets where the interaction between public, formal private and informal private sectors are taken into account. Theoretical analysis shows that gains from reforms aiming at liberalizing formal labor markets can be annulled by shifts in the public sector employment and wage policies. Since the public sector accounts for a substantial share of employment in developing countries, this approach is crucial to understand the main labor market outcomes of such economies. Wages offered by the public sector increase the outside option value of the workers during the bargaining processes in the formal and informal sectors. It becomes more profitable for workers to search on-the-job, in order to move to these more attractive and more stable types of jobs. The public sector therefore acts as an additional tax for the formal private firms. Using data on workers’ flows from Egypt, we show empirically and theoretically that the liberalization of labor markets plays against informal employment by increasing the profitability, and hence job creations, of formal jobs. The latter effect is however dampened or even sometimes nullified by the increase of the offered wages in the public sector observed at the same time.  相似文献   
87.
    
In this work we examine how economic growth affects public debt when interacted with reelection prospects. Reelection considerations shorten political time horizons and give rise to political myopia that exacerbates debt accumulation. That laxer institutional reelection restrictions (e.g., no term limits) mitigate this effect due to electoral accountability is well known. Incorporating growth, we find that this mitigation can be reversed because less myopic, and more accountable, incumbents put more emphasis on smoothing the effects of growth across generations. We test these predictions using an annual-based panel of U.S. states over the period 1963–2010. Our identification strategy rests on constitutionally-entrenched differences in gubernatorial term limits that provide plausibly exogenous variation in reelection prospects, and aggregate national TFP shocks that are exogenous to individual states. Our estimates indicate that when reelection is possible a one standard deviation positive income shock induces, within the same year, a relative increase of approximately $40 in real per capita public debt.  相似文献   
88.
Some governments seem ambivalent towards economic crime because, on the one hand, there are adverse effects on competition and legal businesses; on the other hand, there are benefits through (shadow) employment and income in less-developed areas, as well as benefits through relations of political clientage. We focus on counterfeiting and its economic effects on trade in Italy during the economic crisis. Using a newly built regional dataset and a dynamic panel model, we find evidence of the dual impact of counterfeiting. The production (and exchange) of fake goods depresses the legal market that relies on intellectual property rights but supports shadow-economic activities for the benefit of illegal workers, criminal organisations, and political clientele. We show that the negative effects outweigh the positive effects.  相似文献   
89.
Idea Competitions (ICs) are becoming a popular mechanism chosen by firms to perform Open Innovation. They are a way to engage with external sources of knowledge such as individual entrepreneurs and small firms who are asked to submit ideas and compete for a prize. However, little is known about the success of ICs as acquisition mechanisms. The researchers conducted interviews in five multinational companies to evaluate the effects of using ICs as an acquisition mechanism. Although still preliminary, the results of this study show that the success of ICs as an acquisition mechanism remains uncertain because their output (i.e. the number of ideas acquired) is often low compared to the input (i.e. the number of ideas submitted) and effort required to run them (e.g. to vet ideas). Across the cases observed, ICs appear to be more successful at identifying and acquiring early-stage ideas, particularly those outside the current business focus. The study shows that ICs deliver other functional benefits such as improved intelligence and public relations and that these need to be considered as part of the evaluation of the IC's success. The paper concludes by discussing the conditions in which ICs are implemented and the implications for Open Innovation theory.  相似文献   
90.
We report experimental results on a series of ten one-shot two-person 3×3 normal form games with unique equilibrium in pure strategies played by non-economists. In contrast to previous experiments in which game theory predictions fail dramatically, a majority of actions taken coincided with the equilibrium prediction (70.2%) and were best-responses to subjects' stated beliefs (67.2%). In constant-sum games, 78% of actions taken were predicted by the equilibrium model, outperforming simple K-level reasoning models. We discuss how non-trivial game characteristics related to risk aversion, efficiency concerns and social preferences may affect the predictive value of different models in simple normal form games.  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