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   2092篇
  免费   11篇
财政金融   345篇
工业经济   106篇
计划管理   411篇
经济学   530篇
综合类   27篇
运输经济   24篇
旅游经济   14篇
贸易经济   461篇
农业经济   39篇
经济概况   121篇
邮电经济   25篇
  2024年   18篇
  2023年   23篇
  2022年   22篇
  2021年   32篇
  2020年   41篇
  2019年   76篇
  2018年   79篇
  2017年   74篇
  2016年   94篇
  2015年   75篇
  2014年   113篇
  2013年   215篇
  2012年   117篇
  2011年   122篇
  2010年   145篇
  2009年   121篇
  2008年   105篇
  2007年   78篇
  2006年   58篇
  2005年   54篇
  2004年   47篇
  2003年   38篇
  2002年   51篇
  2001年   35篇
  2000年   26篇
  1999年   29篇
  1998年   30篇
  1997年   16篇
  1996年   21篇
  1995年   15篇
  1994年   9篇
  1993年   10篇
  1992年   5篇
  1990年   5篇
  1989年   5篇
  1988年   6篇
  1986年   7篇
  1985年   6篇
  1984年   4篇
  1983年   8篇
  1980年   4篇
  1979年   4篇
  1977年   4篇
  1974年   4篇
  1973年   5篇
  1972年   4篇
  1971年   5篇
  1969年   3篇
  1967年   5篇
  1966年   7篇
排序方式: 共有2103条查询结果,搜索用时 15 毫秒
81.
This study investigates how to direct and assemble the sales force for new product selling. In a first step, the authors draw on self‐determination theory to explore and empirically test a threefold conceptualization of motivation. Results provide insights into why sales force steering works differently in the new product selling context. Specifically, results show that for new products’ financial performance, internalized new product selling motivation is more important than intrinsic and controlled motivation. In a second step, the authors show how firms can motivate different sales reps to achieve higher financial performance of new products. In doing so, they examine the interaction effects of sales reps’ predispositions and widespread firm‐steering instruments on new products’ financial performance. Results reveal that the new product sales orientation of the bonus strengthens the positive relationship between sales reps’ performance predisposition and new product financial performance but weakens the relationship between sales reps’ learning predisposition and financial new product performance. Moreover, results reveal that the new product sales orientation of the periodic review strengthens the positive relationship between sales reps’ learning predisposition and financial new product performance. A post hoc analysis shows that a differentiated steering approach that matches appropriate steering instruments with sales reps’ varying predispositions substantially enhances reps’ financial new product performance.  相似文献   
82.
    
Previous research suggests that the distinctive nature of family firms, including both specific advantages and disadvantages related to their particular agency situation, influences innovation activities. Most studies, however, view family firms as homogeneous entities and thus neglect the heterogeneity of family firms when comparing them with nonfamily firms. One important factor of this firm heterogeneity is family influence in terms of ownership, management, and governance. A data set of large German publicly traded firms between 2000 and 2009 is used to test how these three dimensions of family influence predict innovation input and output. The results show that family participation in management and governance has a negative impact on innovation input and a positive influence on innovation output. This suggests that family members are risk averse and reluctant to invest in innovation, but at the same time do so more effectively.  相似文献   
83.
84.
This paper discusses a factor model for short-term forecasting of GDP growth using a large number of monthly and quarterly time series in real-time. To take into account the different periodicities of the data and missing observations at the end of the sample, the factors are estimated by applying an EM algorithm, combined with a principal components estimator. We discuss some in-sample properties of the estimator in a real-time environment and propose alternative methods for forecasting quarterly GDP with monthly factors. In the empirical application, we use a novel real-time dataset for the German economy. Employing a recursive forecast experiment, we evaluate the forecast accuracy of the factor model with respect to German GDP. Furthermore, we investigate the role of revisions in forecast accuracy and assess the contribution of timely monthly observations to the forecast performance. Finally, we compare the performance of the mixed-frequency model with that of a factor model, based on time-aggregated quarterly data.  相似文献   
85.
    
In this note we reconsider the paper of Zhang and Zhang (1997), published in Managerial and Decision Economics, who analyze a strategic delegation model with R&D spillovers in an imperfectly competitive market. We were motivated to study their setup by a puzzling result given in their paper: delegating the production and R&D decisions to managers is never beneficial for the owners of the firm. When we tried to understand the driving forces of this result, we found however that the findings of Zhang and Zhang (1997) are incorrect. We explain why their derivations are wrong and demonstrate via counterexamples that the main propositions in their paper do not hold. In addition, we show how the correct solution of this R&D model with spillovers can be obtained. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
86.
In this paper we propose a subsampling estimator for the distribution of statistics diverging at either known or unknown rates when the underlying time series is strictly stationary and strong mixing. Based on our results we provide a detailed discussion of how to estimate extreme order statistics with dependent data and present two applications to assessing financial market risk. Our method performs well in estimating Value at Risk and provides a superior alternative to Hill's estimator in operationalizing Safety First portfolio selection.  相似文献   
87.
88.
This paper reveals that the class of Affine Term Structure Models (ATSMs) introduced by Duffie and Kan (1996) is larger than previously considered in the literature. In the framework of risk factors following a Wishart autoregressive process, we define the Wishart Term Structure Model (WTSM) as an extension of a subclass of Quadratic Term Structure Models (QTSMs), derive simple parameter restrictions that ensure positive bond yields at all maturities, and observe that the usual constraint on affine processes requiring that the volatility matrix be diagonal up to a path independent linear invertible transformation can be considerably relaxed.  相似文献   
89.
90.
    
In line with calls to stimulate methodological diversity and support evidence-based human resource development (HRD) through quantitative competencies, we present a methods demonstration leveraging open-source tools and lesser-known quantitative research methods to support the HRD research community and applied HRD in the workplace. In this paper, we provide an informative introduction to partial least squares structural equation modeling (PLS-SEM). We discuss PLS-SEM application trends in the field of HRD, present key characteristics of the method, and demonstrate up-to-date metrics and evaluation guidelines using an illustrative model. Our PLS-SEM demonstration and explanations can serve as a valuable resource for practitioners concerned with substantiating results for organizational stakeholders and support researchers in methodological decision-making while avoiding common pitfalls associated with less familiar methods. Our step-by-step demonstration is conducted in open-source software and accompanied by explicitly coded operations so that readers can easily replicate the illustrative analyses presented.  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