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   174篇
  免费   9篇
财政金融   36篇
工业经济   9篇
计划管理   21篇
经济学   47篇
运输经济   3篇
贸易经济   44篇
农业经济   15篇
经济概况   8篇
  2024年   1篇
  2023年   2篇
  2021年   2篇
  2020年   10篇
  2019年   5篇
  2018年   16篇
  2017年   9篇
  2016年   6篇
  2015年   7篇
  2014年   10篇
  2013年   19篇
  2012年   11篇
  2011年   10篇
  2010年   3篇
  2009年   14篇
  2008年   5篇
  2007年   6篇
  2006年   9篇
  2005年   5篇
  2004年   6篇
  2003年   6篇
  2002年   5篇
  2001年   3篇
  2000年   3篇
  1999年   2篇
  1998年   1篇
  1995年   1篇
  1990年   1篇
  1988年   1篇
  1982年   1篇
  1978年   1篇
  1976年   1篇
  1974年   1篇
排序方式: 共有183条查询结果,搜索用时 18 毫秒
141.
142.
Although many of the principal milestones of current career research are of U.S. origin, the influence of European contributions slowly grows. Drastic changes of careers and career contexts surfacing in the early 1990s have renewed the interest in career issues. In addition, new concepts such as the boundaryless career propelled the European career discourse and triggered career studies in Europe. Despite the difficulty to give a comprehensive picture because of the differences within Europe and the many possible measures of comparison, this paper identifies three major characteristics of European career research and practice: (1) Substantial heterogeneity in terms of career practice; (2) The use of theoretical concepts usually coming from social sciences in career research; (3) The emphasis on social structures in conceptualizing influencing factors of career. After identifying and explaining these characteristics, the paper discusses their implications for human resource management research and practice.  相似文献   
143.
The authors find that financial markets have real effects on corporate decisions but that, unfortunately, some temporary market enthusiasm, unrelated to firm intrinsic value, may cause management to make value‐destroying decisions as the result of random and uninformed stock market volatility. In particular, they are prone to making bad decisions after stock market overreactions to “surprise” earnings announcements. This study shows a positive effect of greater long‐term ownership on French listed firms. Fundamental investor ownership reduces the degree of market mispricing which serves long‐run shareholder value maximization. A fundamental investor is one that, on average, hold his shares for at least two years, is in the top quartile of a firm ownership, and has an active allocation strategy. They are about 8% of all investors. Compared to non‐fundamental investors, fundamental investors hold their positions on average three times longer and have positions 1.5 times larger. Fundamental investors are more present in firms which have more liquid stocks, which pay dividends, and which are relatively poorer performers and have relatively lower market‐to‐book than their industry peers.  相似文献   
144.
This paper contains results on local and global stability of n-sector growth models when utility is discounted mostly for small rates of discount. It is well known that when future utility is not discounted one can prove precise results about optimal steady states (OSS's) under fairly general assumptions. In particular, existence, uniqueness, and turnpike properties have been established by several authors. The counter examples presented by Kurz, Sutherland, and Weitzman, however, show that when utility is discounted, additional assumptions are required to obtain turnpike results. In general, it would be interesting to know how the submanifolds of stability change as δ changes. One hopes that certain conditions on the utility function would be sufficient to “classify” the submanifolds of stability and instability. Such a question is apparently very difficult to answer, but we think that the results obtained here will help in this task.The proof that the turnpike theorem holds for discount factors near one is divided in two parts. First, we prove that optimal paths “visit” neighborhoods of the modified OSS's. Then, we prove that local stability holds for such neighborhoods.In order to show this fact, we must prove that the local “stable manifold” varies continuously with the discount factor. This roundabout method is necessary since our problem is similar to proving uniform continuity with respect to a parameter of solutions of a differential equation in a noncompact interval of time.Other problems analyzed here include uniqueness and continuity of OSS's. We also discuss the relation between the saddle-point property and the local stability of infinite horizon optimal growth paths.  相似文献   
145.
146.
Transfer line balancing problems (TLBP) deal with the optimization of serial machining lines. At every machine, the operations are performed by blocks. The operations within each block are executed simultaneously by the same multi-spindle head. In the lines considered here, the spindle heads of each machine are activated sequentially. The objective of TLBP is to group the operations into blocks and to assign the blocks to machines in order to minimize the total amount of the required equipment (spindle heads and machines). This problem is described and all the most promising exact and heuristic algorithms, recently suggested for it, are compared via detailed computational experiments.  相似文献   
147.
Sustainable Partnerships to Enhance Rural Enterprises and Agricultural Development (SPREAD) was a programme to enhance the value chain for commodities in Rwanda including coffee. The implicit concept was that improving the value chain would increase the incomes for smallholders and, hence, reduce the poverty rate. The results indicate that Rwanda coffee prices increased relative to an index price for traded coffee with the implementation of SPREAD. In addition, the results indicate that participation in the coffee market at this time was associated with higher household income and lower rates of poverty.  相似文献   
148.
This paper analyses the potential effect of local agro-environmental policies in promoting multifunctionality in a rural landscape, with a two-scale modelling framework: a regional scale for food demand and a local scale for the forces driving land use. The framework has been designed in four steps. First, the relative influence of the driving factors on the current land use pattern has been analysed. Two scenarios are designed that vary the external demand for the total land use, and alter more or less quickly the specific location factors that drive the landscape pattern. The first scenario considers trends in the external and internal driving forces. The second relies both on totally decoupled farm subsidies and unregulated housing growth. In both scenarios a local agro-environmental policy is introduced and we compare its consequences with the previous scenario's landscape pattern. The third step consists of a modelling exercise that analyses the likely outcome of each scenario on the development of land use patterns on a local scale. Last, these landscape patterns have been translated into ecological indexes that assess the effect of the policy options on the multifunctionality of the local landscape.  相似文献   
149.
We examine whether the recent expansions in Medicaid from the Affordable Care Act reduced “employment lock” among childless adults who were previously ineligible for public coverage. We compare employment in states that chose to expand Medicaid versus those that chose not to expand, before and after implementation. We find that although the expansion increased Medicaid coverage by 3.0 percentage points among childless adults, there was no significant impact on employment.  相似文献   
150.
ABSTRACT

This paper analyzes the role played by the Brazilian Development Bank (BNDES) in different periods of Brazil’s development process since its founding in 1952. The bank’s history is nonlinear, varying with socio-economic and political changes over time. Four major periods in its history are: (i) from its creation to the debt crisis in the 1980s, a period known as ‘developmentalism’; (ii) the neoliberal movement of the 1990s; (iii) the reintroduction of the BNDES as a relevant tool for development in the 2000s; and (iv) a new neoliberal movement that arose beginning in mid-2016. Each of these periods is characterized by certain development conventions that shape how institutions, such as the BNDES, operate, and at the same time are shaped by them. In contrast to mainstream economics, which focuses on a one-size-fits-all institution for development, this paper evaluates the interactions between development and institutions as historical processes, with an emphasis on the prevailing development conventions. The trajectory and different roles assumed by the BNDES over time exemplify this permanent relationship, rejecting the idea that particular types of institutions are related to development.  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