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   1143篇
  免费   47篇
财政金融   197篇
工业经济   110篇
计划管理   176篇
经济学   242篇
综合类   18篇
运输经济   15篇
旅游经济   19篇
贸易经济   221篇
农业经济   98篇
经济概况   89篇
邮电经济   5篇
  2022年   8篇
  2021年   8篇
  2020年   31篇
  2019年   25篇
  2018年   46篇
  2017年   50篇
  2016年   36篇
  2015年   26篇
  2014年   36篇
  2013年   171篇
  2012年   38篇
  2011年   36篇
  2010年   35篇
  2009年   39篇
  2008年   38篇
  2007年   33篇
  2006年   41篇
  2005年   35篇
  2004年   30篇
  2003年   38篇
  2002年   29篇
  2001年   26篇
  2000年   22篇
  1999年   16篇
  1998年   19篇
  1997年   18篇
  1996年   17篇
  1995年   18篇
  1994年   12篇
  1993年   9篇
  1992年   13篇
  1991年   10篇
  1990年   22篇
  1989年   10篇
  1988年   9篇
  1987年   4篇
  1986年   7篇
  1985年   12篇
  1984年   15篇
  1983年   13篇
  1982年   16篇
  1981年   9篇
  1980年   9篇
  1979年   8篇
  1978年   11篇
  1977年   8篇
  1976年   3篇
  1975年   4篇
  1974年   4篇
  1973年   5篇
排序方式: 共有1190条查询结果,搜索用时 109 毫秒
61.
In this paper, I develop a regression-based system of labour productivity equations that account for capital-embodied technological change and I incorporate this system into IDLIFT, a structural, macroeconomic input-output model of the US economy. Builders of regression-based forecasting models have long had difficulty finding labour productivity equations that exhibit the "Solowian' property that movements in investment should cause accompanying movements in labour productivity. The production theory developed by Solow and others dictates that this causation is driven by the effect of traditional capital deepening as well as technological change embodied in capital. Lack of measurement of the latter has hampered the ability of researchers to estimate properly the productivity-investment relationship. Recent research by Wilson (2001) has alleviated this difficulty by estimating industry-level embodied technological change. In this paper, I utilize those estimates to construct capital stocks adjusted for technological change and then use these adjusted stocks to estimate Solow-type labour productivity equations. It is shown that replacing IDLIFT's former productivity equations, based on changes in output and time trends, with the new equations, results in a convergence between the dynamic behaviour of the model and that predicted by traditional (Solowian) production theory.  相似文献   
62.
Scholars have long debated whether leader's integrity affects managerial decision making with respect to social responsibility. In this paper, we propose a model in which transformational leadership mediates integrity and corporate social responsibility (CSR) and examine the relationship between these concepts. A survey of 170 senior managers from 50 organizations was conducted. Results indicate that integrity is a predictor of transformational leadership behavior and that transformational leaders’ behaviors are linked to CSR practices. It was also found that leaders rated with higher integrity are engaged in CSR because they exhibit more transformational leadership behaviors. These findings add to the extant literature by demonstrating that integrity is important as transformational leaders engage more actively on ‘responsible’ behaviors. Practical implications call for an understanding among corporate leaders of the benefits of integrity and how it relates to transformational leadership. Organizations can improve their selection and leadership development processes by focusing on these two dimensions.  相似文献   
63.
Cross sectional estimation of convergence regressions is known to be hazardous if there is convergence towards heterogeneous steady state values. In this paper, Monte Carlo methods are used to investigate the implications of this parameter heterogeneity problem. The cross sectional and pooled OLS estimators are compared with a panel estimator which is unaffected by heterogeneity. If there is heterogeneity, the latter outperforms both the unconditional and conditional cross sectional and pooled OLS estimators.  相似文献   
64.
In the today′s changing environment, firms are hardly competing with each other to achieve a competitive advantage that can differentiate them from others and improve their organizational performance. In this sense, it is crucial to develop corporate entrepreneurship and promote strategic variables that foster it.The aim of this paper is to highlight the importance of different technological variables (top management support to technology, technological skills and technological distinctive competencies) and organizational learning on corporate entrepreneurship, and thus analyze the influence of corporate entrepreneurship on organizational performance in the context of technology firms.A sample of 160 European technology firms was selected from the database Amadeus in 2009 with CEOs as our main informants. The hypotheses studied are empirically confirmed by using a hierarchical regression model.  相似文献   
65.
Previous research shows that knowledge integration mechanisms (KIMs) mediate the cross‐functional collaboration‐product innovation performance relationship; however, this mediating effect seems to be rather weak. This study, in contrast, develops a moderated mediation (MOME) model to argue that such a mediating effect is moderated by product innovativeness. A sample comprised of 106 manufacturing firms is utilized in the analyses. A moderated‐mediation approach shows that the mediating effect of KIMs in the linkage between cross‐functional collaboration and product innovation performance varies by different perspectives of product innovativeness. From an industry (macro‐level) perspective, product innovativeness positively moderates the mediating effect of KIMs on product innovation performance; in contrast, such a moderating effect is not significant under a firm (micro‐level) perspective. Copyright © 2011 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   
66.
The economic and political changes which are taking place in Europe affect interest rates. This paper develops a two-factor model for the term structure of interest rates specially designed to apply to EMU countries. In addition to the participant country's short-term interest rate, we include as a second factor a 'European' short-term interest rate. We assume that the 'European' rate follows a mean reverting process. The domestic interest rate also follows a mean reverting process, but its convergence is to a stochastic mean which is identified with the 'European' rate. Closed-form solutions for prices of zero coupon discount bonds and options on these bonds are provided. A special feature of the model is that both the domestic and the European interest rate risks are priced. We also discuss an empirical estimation focusing on the Spanish bond market. The 'European' rate is proxied by the ecu's interest rate. Through a comparison of the performance of our convergence model with a Vasicek model for the Spanish bond market, we show that our model provides a better fit both in-sample and out-of sample and that the difference in performance between the models is greater the longer the maturity of the bonds.
(J.E.L.: E43, C510).  相似文献   
67.
In the Canadian grain marketing system, grains have typically been cleaned to very tight levels at port elevators. In recent years, changes in rail rates, livestock production and grain handling technology are pressuring the system for change. A mathematical programming model of vertical marketing functions in western Canada is developed to determine optimal locations for cleaning. Cleaning margins are positive in all regions of the prairies. Grain cleaning is found generally to be more efficient on the prairies than at the ports. However, grain cleaning will continue at ports to some extent because of inadequate capacity at country positions and sunk costs at port facilities and because primary elevators will likely clean only the dominant grains. Dans le système canadien de commercialisation des céreales, les grains passent généralement par un nettoyage très rigoureux aux silos portuaires. Ces dernières années, les changements affectant les tarifs ferroviaires, les productions animales et la technologie de manutention des céréales rendent cependant nécessaire un changement du système. Les auteurs utilisent un modéle mathématique de programmation des fonctions verticales de mise en marché pour déterminer les emplacements idéaux pour le nettoyage du grain. Les marges commerciales des nettoyeurs étaient positives dans toutes les régions des Prairies et le nettoyage était généralement plus efficient dans cette partie di pays qu'aux situations portuaires. Il continuera cependant à sefaire à ces derniers endroits dans une certaine mesure, en raison du manque de capacités suffisantes aux emplacements de campagne, des coûts irrécupérabies aux installations portuaires et du fait que les élévateurs primaires ne nettoieront vraisemblablement que les céréales commercialement le plus importantes.  相似文献   
68.
Summary. We report a policy experiment that illustrates a potential problem of using historical pass-through rates as a means of predicting the competitive consequences of projected firm-specific cost savings in antitrust contexts, particularly in merger analysis. The effects of cost savings on welfare can vary vastly, depending on how the savings affect the industry supply schedule. In a capacity-constrained price-setting oligopoly, we observe that cost savings can overwhelm behaviorally salient market power incentives when the savings affect marginal (high cost) units. However, cost savings of the same magnitude on an infra-marginal unit leave market power unchanged.  相似文献   
69.
The merits of strategic planning as a marketing tool are discussed in this article which takes the view that although marketers claim to be future-oriented, they focus too little attention on long-term planning and forecasting. Strategic planning, as defined by these authors, usually encompasses periods of between five and twenty-five years and places less emphasis on the past as an absolute predictor of the future. It takes a more probabilistic view of the future than conventional marketing strategy and looks at the corporation as but one component interacting with the total environment. Inputs are examined in terms of environmental, social, political, technological and economic importance. Because of its futuristic orientation, an important tenant of strategic planning is the preparation of several alternative scenarios ranging from most to least likely. By planning for a wide-range of future market conditions, a corporation is more able to be flexible by anticipating the course of future events, and is less likely to become a captive reactor--as the authors believe is now the case. An example of strategic planning at General Elecric is cited.  相似文献   
70.
Should provincial business taxes be deductible under a federal profit tax? We show that the ‘optimal deductible,’ which neutralizes the vertical fiscal externality between the federal and provincial government, is the change in the federal tax base per dollar of tax revenue collected by the provincial government. The optimal payroll tax deductibility rate depends on the extent to which it is shifted to workers and on the difference between the federal tax rates on profits and on labour income. Two apparently contradictory positions – full deductibility of a payroll tax and non‐deductibility – are special cases of our model. La déductibilité des taxes provinciales imposées aux entreprises dans une fédération où il y a des externalités fiscales verticales. Est‐ce que les taxes provinciales imposées aux entreprises devraient être déductibles de l'impôt fédéral sur les profits? Les auteurs montrent que l'optimum de déductibilité qui neutralise les externalités fiscales verticales entre le fédéral et les provinces est le changement dans la base d'imposition fédérale par dollar de revenu fiscal collecté par le gouvernement provincial. Le taux de déductibilité optimal d'un impôt sur les salaires dépend de la portion du fardeau fiscal qui est déportée vers les travailleurs et de la différence entre les taux d'imposition du fédéral sur les profits et sur le revenu du travail. Deux positions apparemment contradictoires – pleine déductibilité d'un impôt sur les salaires et déductibilité nulle – sont des cas spéciaux du modèle général.  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