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   23213篇
  免费   352篇
财政金融   3530篇
工业经济   1049篇
计划管理   3843篇
经济学   5749篇
综合类   507篇
运输经济   154篇
旅游经济   149篇
贸易经济   5922篇
农业经济   250篇
经济概况   1793篇
信息产业经济   44篇
邮电经济   575篇
  2024年   9篇
  2023年   130篇
  2022年   97篇
  2021年   135篇
  2020年   250篇
  2019年   302篇
  2018年   2651篇
  2017年   2503篇
  2016年   1601篇
  2015年   351篇
  2014年   448篇
  2013年   1397篇
  2012年   804篇
  2011年   2174篇
  2010年   2085篇
  2009年   1762篇
  2008年   1687篇
  2007年   1965篇
  2006年   244篇
  2005年   537篇
  2004年   561篇
  2003年   650篇
  2002年   338篇
  2001年   143篇
  2000年   104篇
  1999年   50篇
  1998年   76篇
  1997年   40篇
  1996年   45篇
  1995年   30篇
  1994年   29篇
  1993年   20篇
  1992年   19篇
  1991年   20篇
  1990年   11篇
  1989年   20篇
  1988年   8篇
  1987年   7篇
  1986年   20篇
  1985年   22篇
  1984年   22篇
  1983年   19篇
  1982年   20篇
  1981年   16篇
  1980年   10篇
  1978年   9篇
  1976年   8篇
  1974年   11篇
  1973年   5篇
  1969年   6篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
This article tests the public interest and regulatory capture hypotheses, in the context of the Swedish electricity market, by studying the factors influencing the Swedish Energy Agency’s decision to replace decision-makers it employs to hear customer complaints against utilities. The study covers the period from the beginning of 1996, when a series of regulatory reforms were introduced to improve consumer protection, until the end of 2008. The study concludes that decision-makers who find in favor of customers have had a statistically lower probability of being removed, consistent with public interest theory. A transitory effect of favoring utilities can be observed for the period from 2 to 6 years following the reforms. In this period, government and public scrutiny of the regulator, which had been high in the immediate aftermath of the reforms, had waned and there were few precedents decided by the courts that the regulator was required to follow. This vacuum created an opportunity for the utilities to increase their influence over the regulator. Once the courts started establishing precedents in relatively large numbers, the supervisory role of the courts ensured that the actions of the regulator were scrutinized. This development has served a similar function to government and public scrutiny in the years immediately following the reforms in promoting the public interest.  相似文献   
992.
This paper considers the combination of pollution taxes and abatement subsidies when some polluting firms procure their abatement goods and services from an oligopolistic eco-industry. The regulator must here cope with two simultaneous price distortions: one that comes from pollution and the other which is caused by the eco-industry’s market power. In this context, we show that taxing emissions while subsidizing polluters’ abatement efforts cannot lead to first-best, but the opposite occurs provided it is the eco-industry’s output which is subsidized. When public transfers also create distortions, welfare can be higher if the regulator uses only an emission tax, but subsidizing abatement suppliers while taxing emissions remains optimal when the eco-industry is concentrated.  相似文献   
993.
Andreas Kuhn 《Empirica》2010,37(2):215-236
This paper describes subjective wage inequality and the demand for redistribution in Austria using individuals’ estimates of occupational wages from the International Social Survey Program. Although these estimates differ widely across individuals, the data clearly show that most individuals would like to decrease wage inequality, relative to the level of inequality which they perceive to exist. The empirical analysis also shows that the demand for redistribution is strongly associated not only with variables describing self-interested motives for redistribution, but also with perceptions of and social norms with respect to inequality. Further, the demand for redistribution is a strong predictor for whether an individual is supportive of redistribution by the state. On the other hand, however, I find almost no evidence for an empirical association between the demand for redistribution and individuals’ party identification.  相似文献   
994.
995.
This paper surveys the conditions under which it is possible to represent a continuous preference ordering using utility functions. We start with a historical perspective on the notions of utility and preferences, continue by defining the mathematical concepts employed in this literature, and then list several key contributions to the topic of representability. These contributions concern both the preference orderings and the spaces where they are defined. For any continuous preference ordering, we show the need for separability and the sufficiency of connectedness and separability, or second countability, of the space where it is defined. We emphasize the need for separability by showing that in any nonseparable metric space, there are continuous preference orderings without utility representation. However, by reinforcing connectedness, we show that countably boundedness of the preference ordering is a necessary and sufficient condition for the existence of a (continuous) utility representation. Finally, we discuss the special case of strictly monotonic preferences.  相似文献   
996.
ABSTRACT

The aim of this paper is to examine the relationship between external cooperation and entrepreneurial orientation (EO). This relationship is explored in cluster environment, wherein entrepreneurial organizations compete and cooperate simultaneously to pursue opportunities. The following hypothesis is tested: External cooperation is positively correlated with entrepreneurial orientation. The hypothesis is tested with a correlation analysis on a sample of 77 small-sized enterprises operating in the Malopolska region in Poland, wherein several clusters are active. Additionally, the regression analysis is conducted to examine the associations between inter-organizational cooperation and EO dimensions. The findings confirm that external cooperation is positively correlated with EO. This observation is confronted with a pro-competitive approach that is a constitutional element of the entrepreneurship concept. Moreover, the findings show that the correlation between external cooperation and a firm’s performance is stronger than between some other EO dimensions and performance. Additionally, the findings show the important role of relationships between organizations and their clients. In the paper, several remarks for development of the theory are discussed, including the need for incorporating inter-organizational cooperation into a set of entrepreneurial traits and reflecting it in entrepreneurial orientation scales. The findings confirm the importance of that direction of theory development that focuses on inter-organizational collaboration in the context of entrepreneurship.  相似文献   
997.
As Chinese economy system has been depended more on the import of petroleum with the development of China, the change in the price of international oil have caused concern among economists and policy makers. This paper is to present a financial Computable General Equilibrium (CGE) model of the Chinese economy which integrates real economy and financial sectors, and to apply it to quantitatively evaluate the impacts on Chinese economy caused by international oil price changes. And the model endogenously determines the exchange rate, covering fixed, partially flexible, and completely flexile exchange rate system to consider the effect of foreign oil price changes from the point of view of macro and industrial aspects. Finally, this paper presents concluding remarks.  相似文献   
998.
In the reliability studies, k-out-of-n systems play an important role. In this paper, we consider sharp bounds for the mean residual life function of a k-out-of-n system consisting of n identical components with independent lifetimes having a common distribution function F, measured in location and scale units of the residual life random variable X t  = (Xt|X > t). We characterize the probability distributions for which the bounds are attained. We also evaluate the so obtained bounds numerically for various choices of k and n.  相似文献   
999.
In this paper, I interpret a time series spatial model (T-SAR) as a constrained structural vector autoregressive (SVAR) model. Based on these restrictions, I propose a minimum distance approach to estimate the (row-standardized) network matrix and the overall network influence parameter of the T-SAR from the SVAR estimates. I also develop a Wald-type test to assess the distance between these two models. To implement the methodology, I discuss machine learning methods as one possible identification strategy of SVAR models. Finally, I illustrate the methodology through an application to volatility spillovers across major stock markets using daily realized volatility data for 2004–2018.  相似文献   
1000.
There is general agreement that attitudes towards the entrepreneur, entrepreneurial activity, and its social function are determinant factors for university students to decide an entrepreneurial career.This empirical study aims at assessing and comparing the attitudes of university students towards entrepreneurship and enterprise formation in Catalonia and Puerto Rico, using a sample of 837 and 435 students, respectively.Results reveal a positive entrepreneur’s image. Both samples have a favorable perception of desirability of new venture creation, although the perception of feasibility is by far not so positive and only a small percentage has the firm intention to create a new company.  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