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   1612篇
  免费   96篇
财政金融   218篇
工业经济   69篇
计划管理   354篇
经济学   440篇
综合类   26篇
运输经济   31篇
旅游经济   20篇
贸易经济   385篇
农业经济   65篇
经济概况   99篇
邮电经济   1篇
  2024年   2篇
  2023年   29篇
  2022年   10篇
  2021年   23篇
  2020年   46篇
  2019年   64篇
  2018年   96篇
  2017年   117篇
  2016年   85篇
  2015年   68篇
  2014年   86篇
  2013年   374篇
  2012年   88篇
  2011年   85篇
  2010年   81篇
  2009年   67篇
  2008年   53篇
  2007年   30篇
  2006年   44篇
  2005年   37篇
  2004年   13篇
  2003年   24篇
  2002年   26篇
  2001年   21篇
  2000年   19篇
  1999年   12篇
  1998年   9篇
  1997年   5篇
  1996年   10篇
  1995年   7篇
  1994年   11篇
  1993年   5篇
  1992年   5篇
  1991年   4篇
  1990年   5篇
  1986年   1篇
  1985年   4篇
  1984年   3篇
  1983年   5篇
  1982年   2篇
  1981年   8篇
  1980年   1篇
  1979年   1篇
  1978年   3篇
  1977年   5篇
  1976年   4篇
  1975年   2篇
  1974年   2篇
  1973年   3篇
  1907年   1篇
排序方式: 共有1708条查询结果,搜索用时 15 毫秒
991.
Business-oriented environmental regulation is expected to have a fundamental role in mitigating the adverse effects of human activity on the natural environment. However, its effectiveness and efficiency are not well established. A systematic literature review reveals validity and reliability problems in the measurement of business-oriented environmental regulation. From a sustainable development perspective, we develop a theoretical framework that aims to enhance the measurement and assessment of this kind of regulation. Our theoretical framework proposes that the goals of business-oriented environmental regulation must articulate a measurement system in a 3 × 3 matrix: three measurement levels (stringency, response, and outcome—in this cause–effect order) and three sustainability dimensions (environmental, social, and economic—in this constraint order). For each cell, we propose a combination of objective and subjective indicators. This theoretical framework expands existing approaches to business-oriented environmental regulation measurement by integrating a sustainable development perspective into a measurement framework in a structured theory-driven manner. Not only will this measurement system be useful for improving environmental policy, but it will also allow companies to improve their business strategy and come closer to complying with environmental regulations in order to effectively contribute to solutions for current environmental problems and help achieve a sustainable development.  相似文献   
992.
993.
Exports from Russia, Ukraine and Kazakhstan (RUK) help to improve global wheat availability and, hence, global food security. During the past 15 years, however, RUK wheat exports have shown high variability, mainly because they have been repeatedly diminished by severe harvest failures. We present an outlook for RUK wheat production and exports up to 2027, taking into account possible yield variability and harvest failures, and focusing on the impact on food security in the Middle East and North Africa (MENA), the world’s major wheat importing region. For the analysis we use the stochastic version of the Aglink-Cosimo model. Simulation results show that wheat yields in RUK are a major source of uncertainty for international wheat markets. The projected substantial increases in world market prices due to limited RUK wheat exports threaten food security in MENA and highlight the need for both stabilising RUK yields and novel complementary food security approaches to decrease MENA’s vulnerability to disruptions in agricultural world markets.  相似文献   
994.
This paper analyses the effects of non-performing loans (NPLs) on the cost of capital, and on lending and liquidity supply, for a sample of 225 Eurozone banks over the period 2002Q1-2016Q4. Our results demonstrate that NPLs increase the cost of capital, which reduces both lending supply and liquidity creation. This phenomenon is comparatively more significant for periphery county banks than for core country banks.  相似文献   
995.
We extract variance and skew risk premiums from volatility derivatives in a model-free way and analyze their relationships along with volatility index and equity index returns. These risk premiums can be synthesized through option trading strategies. Using a time series of option prices on the VIX, we find that variance swap excess return can be partially explained by volatility index and equity index excess returns while these latter variables carry little information for the skew swap excess return. The results sharply contrast with those obtained for the equity index option market underlining very specific characteristics of the volatility derivative market.  相似文献   
996.
International Entrepreneurship and Management Journal - Understanding the formation of entrepreneurial intention is critical, given that it is the first step in the entrepreneurial process. Little...  相似文献   
997.
  • People tend to like others with attributes similar to their own (the similarity principle) and favor products with names similar to their own (the name letter effect).
  • In the present field experiment, the name letter effect and similarity principle are tested in a phonaton among alumni of Utrecht University, The Netherlands. First name and surname initials, fields of education, and association memberships of alumni were matched to those of students soliciting contributions in the phonaton.
  • Female alumni with first names and fields of study similar to those of solicitors were more likely to donate, as were male alumni with first names similar to the field of study of solicitors. Both male and female alumni with first names similar to the name of the university donated more often than those with dissimilar names.
  • Name letter effects are a cheap and effective instrument to increase donations in fundraising campaigns conducted by telephone.
Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
998.
Entrepreneurship,income distribution and economic growth   总被引:1,自引:0,他引:1  
Traditionally different factors and variables have been considered in the economic growth models. Following Solow’s model, economists considered physical capital and technology during 1950s–1980s. With the introduction of endogenous growth models, new forms of capital were introduced in the production function; human capital, public capital and more recently social capital. However, the consideration of qualitative variables is necessary to improve the economic growth analysis. The improvement of statistical information has favored their introduction in the economic growth models. Recently, “entrepreneurship” concept has been considered in this type of analysis. Entrepreneurship considers the capacity and ability to create new business and production activity. It is an activity not an occupation. Some authors like Schumpeter have included it in their models and they have analysed its effects on economic growth. But it is also necessary to include the role of social climate, that in a schumpterian way it could be represented by income distribution. The main objective of the paper is to analyze the relationship between entrepreneurship, income distribution and economic growth following the ideas developed by Schumpeter and we will contrast them from a empirical analysis using the GEM (Global Entrepreneurship Monitor) data.  相似文献   
999.
This paper deals with the characterization problem of the minimal entropy martingale measure (MEMM) for a Markov-modulated exponential Lévy model. This model is characterized by the presence of a background process modulating the risky asset price movements between different regimes or market environments. This allows to stress the strong dependence of financial assets price with structural changes in the market conditions. Our main results are obtained from the key idea of working conditionally on the modulator-factor process. This reduces the problem to studying the simpler case of processes with independent increments. Our work generalizes some previous works in the literature dealing with either the exponential Lévy case or the exponential-additive case.  相似文献   
1000.
We perform an experiment which provides a laboratory replica of some important features of the welfare state. In the experiment, all individuals in a group decide whether to make a costly effort, which produces a random (independent) outcome for each one of them. The group members then vote on whether to redistribute the resulting and commonly known total sum of earnings equally amongst themselves. This game has two equilibria, if played once. In one of them, all players make effort and there is little redistribution. In the other one, there is no effort and nothing to redistribute. A solution to the repeated game allows for redistribution and high effort, sustained by the threat to revert to the worst of these equilibria. Our results show that redistribution with high effort is not sustainable. The main reason for the absence of redistribution is that rich agents do not act differently depending on whether the poor have worked hard or not. The equilibrium in which redistribution may be sustained by the threat of punishing the poor if they do not exert effort is not observed in the experiment. Thus, the explanation of the behavior of the subjects lies in Hobbes, not in Rousseau.  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