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   838篇
  免费   41篇
财政金融   119篇
工业经济   71篇
计划管理   156篇
经济学   280篇
综合类   3篇
运输经济   20篇
旅游经济   7篇
贸易经济   154篇
农业经济   33篇
经济概况   36篇
  2023年   8篇
  2022年   7篇
  2021年   5篇
  2020年   22篇
  2019年   48篇
  2018年   32篇
  2017年   50篇
  2016年   46篇
  2015年   29篇
  2014年   39篇
  2013年   132篇
  2012年   46篇
  2011年   54篇
  2010年   41篇
  2009年   54篇
  2008年   34篇
  2007年   25篇
  2006年   32篇
  2005年   25篇
  2004年   25篇
  2003年   25篇
  2002年   14篇
  2001年   12篇
  2000年   5篇
  1999年   11篇
  1998年   7篇
  1997年   4篇
  1996年   6篇
  1995年   3篇
  1994年   2篇
  1993年   2篇
  1992年   4篇
  1991年   2篇
  1990年   2篇
  1989年   1篇
  1988年   3篇
  1987年   3篇
  1986年   3篇
  1985年   1篇
  1984年   2篇
  1983年   5篇
  1981年   2篇
  1980年   1篇
  1979年   2篇
  1978年   1篇
  1976年   1篇
  1973年   1篇
排序方式: 共有879条查询结果,搜索用时 218 毫秒
71.
Certain theories suggest that the capacity of a region to generate new firms, called entrepreneurship capital, has positive spillover effects on the production of the firms in that region. Evidence generated with aggregated data at the regional level supports this prediction. This paper argues that, using aggregated data at the regional level, entrepreneurship capital could be correlated with regional production even if entrepreneurship capital has no spillover effects on firm production. This will not be the case when data at the firm level are used. This paper provides evidence from a sample of 11,276 Spanish firms during the 2004–2012 period. Positive spillovers are estimated in between effects models, but such spillovers are only found in technological firms when within effects models have been estimated. Thus, the regional entrepreneurship capital spillovers are unclear when data at the firm level are used. Plausible interpretations and implications are discussed.  相似文献   
72.
We extend research on the consequentiality of stated preference choices to a threshold provision mechanism for public goods. We develop a simple theoretical model of option price to analyze how option price varies with payment and provision uncertainty. We explore whether threshold provision contributions are similarly influenced by payment and provision uncertainty using an induced value contribution experiment. Results suggest that: (1) the probability of payment has a negative effect on contributions; (2) the probability of provision has a positive effect on contributions. We offer subjective beliefs regarding payment and provision as a plausible systematic explanation for hypothetical bias.  相似文献   
73.
We examine the determinants of external crises, focusing on the role of foreign liabilities and their composition. Using a variety of statistical tools and comprehensive data spanning 1970–2011, we find that the ratio of net foreign liabilities to GDP is a significant crisis predictor. This is primarily due to the net position in debt instruments—the effect of net equity liabilities is weaker and net FDI liabilities seem, if anything, an offset factor. We also find that: i) breaking down net external debt into its gross asset and liability counterparts does not add significant explanatory power to crisis prediction; ii) the current account is a powerful predictor; iii) foreign exchange reserves reduce the likelihood of crisis more than other foreign asset holdings; and iv) a parsimonious probit containing those and a handful of other variables has good predictive performance in- and out-of-sample. The latter result stems largely from our focus on external crises sensu stricto.  相似文献   
74.
Abstract

This article, based in the body of strategic orientation literature, identifies and explores the practices of innovativeness, proactiveness and competitive aggressiveness that make up the strategic orientation implemented by subsistence entrepreneurs to improve business performance. A factor analysis was carried out using the data of 101 entrepreneurs, small artisanal business owners who operate in the subsistence markets in Oaxaca, Mexico. The results show that subsistence entrepreneurs notably engage in innovative and proactive practices, and, to a lesser extent, competitive aggressiveness. The research concludes that a combination of innovativeness with proactiveness is the most viable option for improving performance, whereas competitive aggressiveness impedes its development. Even so, however, it is still implemented by subsistence businesses in order to conserve their market share.  相似文献   
75.
Abstract

The widely accepted belief that asset returns and insurance product line margins are not normally distributed has motivated the use of skewness (or higher than second-order moments) in the context of optimal risk-reward portfolio allocation. Here we propose an optimization-based methodology to substantially improve the skewness of portfolios in the mean-variance efficient frontier. Unlike other related methods, the proposed methodology is very intuitive, noniterative, and simple to implement, and it can be readily and efficiently carried out using state-of-the-art optimization solvers. These characteristics should be very appealing to risk managers.  相似文献   
76.
The annual structure of the real GDP in the UK, France, Germany and Italy is examined by means of fractionally integrated techniques. Using a version of a testing procedure due to Robinson (Journal of the American Statistical Association, 84, –37, 1994), it is shown that the series can be specified in terms of I(d?) statistical models with d higher than 1. Thus, the series are nonstationary and non-mean-reverting. The forecasting properties of the selected models for each country are also examined.  相似文献   
77.
This article studies the differences between traditional financial intermediaries (commercial banks, savings banks and cooperative banks) and ethical banks based on property rights, in which the owner decides the ideology, principles, standards and objectives of the organisation. In ethical banking, affinity centres on positive social and ethical values. The article consequently focuses on an index proposed both to differentiate ethical banks from other types of banks, and also to pinpoint the differences between the various ethical banks themselves. This is the Radical Affinity Index (RAI), which groups banks together in terms of their stance on ethical commitment, concentrating on ethical ideology and principles (information transparency, placement of assets, guarantees and participation) and using a sample of 114 European banks. The evidence shows that transparency of information and placement of assets are factors that differentiate ethical banks from other financial intermediaries. Guarantees and participation are characteristics specific to ethical banks; these variables, however, do not offer clear evidence to our analysis.  相似文献   
78.
This paper offers a cross-country assessment of the governance of airport regulators in Latin America. The analysis links the institutional design of airport regulators, whether in the form of independent regulatory agencies or government departments, to their overall governance. It examines four dimensions of regulatory governance: autonomy, transparency, accountability, and bureaucratic quality. Independent regulatory agencies in the Latin American airport sector seem to provide a better framework for transparency and bureaucratic quality than government departments. It is not conclusively found, however, that independent regulatory agencies contribute to a more autonomous decision-making or to an enhanced accountability of regulators to other branches of government and airport users. Overall, governance indicators of airport regulators in Latin America are well below the threshold that defines good governance.  相似文献   
79.
Contingent Valuation: Controversies and Evidence   总被引:47,自引:8,他引:39  
Contingent valuation (CV) has become one of the most widely usednon-market valuation techniques. CV's prominence is due to itsflexibility and ability to estimate total value, includingpassive use value. Its use and the inclusion of passive use valuein benefit-cost analyses and environmental litigation are thesubject of a contentious debate. This paper discusses key areasof the debate over CV and the validity of passive use value. Weconclude that many of the alleged problems with CV can beresolved by careful study design and implementation. We furtherconclude that claims that empirical CV findings are theoreticallyinconsistent are not generally supported by the literature. Thedebate over CV, however, has clarified several key issues relatedto nonmarket valuation and can provide useful guidance both to CVpractitioners and the users of CV results.  相似文献   
80.
The chinampas (raised beds) of Xochimilco, Mexico City, are highly productive, traditional wetland agricultural systems, which were able to feed most of the population in pre-hispanic times. There is a strong trend to substitute chinampas with plastic greenhouses for flower production, which creates negative impacts in the landscape, environment and culture. This study compares the environmental and socio-economic sustainability of chinampas and greenhouses, at both the farm and regional levels, using the MESMIS framework. Even though the results show that greenhouses are more profitable, the contribution of chinampas to ecosystem services cannot be substituted by greenhouses, as tree cover is lost, canals are filled and food is not provided. Greenhouses had a higher diversity, but also a higher agrochemical use and are heavily dependent on external inputs and subsidies. Chinampas have shifted from staple crops to commercial horticulture in order to remain a technically viable and economically feasible option for local farmers. However, compensation mechanisms for the provision of ecosystem services are urgently needed if this ancient system is to be maintained. The framework allowed the integration of indicators at both farm and regional scales, combining on-farm surveys with GIS techniques, which could assist in ecosystem service valuation.  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