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   144篇
  免费   6篇
财政金融   17篇
工业经济   6篇
计划管理   45篇
经济学   44篇
运输经济   4篇
旅游经济   2篇
贸易经济   21篇
农业经济   4篇
经济概况   7篇
  2023年   2篇
  2022年   2篇
  2021年   6篇
  2020年   10篇
  2019年   6篇
  2018年   11篇
  2017年   7篇
  2016年   10篇
  2015年   2篇
  2014年   7篇
  2013年   16篇
  2012年   5篇
  2011年   5篇
  2010年   8篇
  2009年   7篇
  2008年   5篇
  2007年   3篇
  2006年   2篇
  2004年   2篇
  2003年   1篇
  2002年   1篇
  2000年   3篇
  1998年   6篇
  1996年   4篇
  1995年   3篇
  1994年   2篇
  1993年   1篇
  1992年   2篇
  1990年   1篇
  1985年   1篇
  1978年   1篇
  1976年   2篇
  1971年   1篇
  1969年   1篇
  1968年   2篇
  1965年   1篇
  1963年   1篇
排序方式: 共有150条查询结果,搜索用时 593 毫秒
41.
In this paper, we provide empirical evidence on the impact of institutional investors on stock market returns dynamics. The Polish pension system reform in 1999 and the associated increase in institutional ownership due to the investment activities of pension funds are used as a unique institutional characteristic. Performing a Markov-switching-GARCH analysis we find empirical evidence that the increase of institutional ownership has temporarily changed the volatility structure of aggregate stock returns. The results are interpretable in favor of a stabilizing effect on index stock returns induced by institutional investors.  相似文献   
42.
The purpose of the paper is to analyse and evaluate the financial situation of elderly households in Central and Eastern European (CEE) countries. Current demographic trends simultaneously with reforms of pension systems in the CEE region may lead to an increasing number of elderly households being exposed to poverty risk. In this study, Ward’s method and the method of standardised sums were applied to classify and order the examined countries according to the financial standing of elderly households. The obtained results allow us to identify countries with similar financial situations for elderly households in 2007, 2010 and 2013, and changes in clusters and ranking over the analysed period. The main findings show that the financial situation of the elderly in CEE countries is very differentiated and changeable, however over the analysed period the financial standing of the elderly seems to be most similar in Poland and Slovakia as well as Estonia, Latvia and Lithuania.  相似文献   
43.
44.
In order to stabilize and improve their income situation, rural households are strongly encouraged to diversify their activities both in and outside the agricultural sector. Often, however, this phenomenon takes on only moderate proportions. This article addresses issues of rural households' income diversification in the case of Poland. It investigates returns from rural households' income strategies using propensity score matching methods and extensive datasets spanning 1998–2008. Results suggest that returns from combining farm and off‐farm activities were lower than returns from concentrating on farming or on self‐employment outside agriculture. This differential is stable over time although returns from diversification have relatively improved after the accession of Poland to the European Union. This is also visible in the fact that since 2006, returns from combining farm and off‐farm activities have equalized with returns from relying solely on hired off‐farm labour, thus smoothing away the difference observed before the accession. Further, over the analysed period, households pursuing a diversification strategy performed better than those relying solely on unearned income. Finally, in general, incomes in households combining farm and off‐farm activities were higher than in those combining off‐farm income sources.  相似文献   
45.
While the potential empowering impact of the GDPR is huge, we argue that the ambivalent attitudes of users towards data protection, as well as the risk of differentiation of legal practice among member states, can seriously limit the real effects of the privacy reform.  相似文献   
46.
47.
Let (W n ,n ≥ 0) denote the sequence of weak records from a distribution with support S = { α01,...,α N }. In this paper, we consider regression functions of the form ψ n (x) = E(h(W n ) |W n+1 = x), where h(·) is some strictly increasing function. We show that a single function ψ n (·) determines F uniquely up to F0). Then we derive an inversion formula which enables us to obtain F from knowledge of ψ n (·), ψ n-1(·), h(·) and F0).  相似文献   
48.
The aim of this paper is to make the case for a systematic engagement of transition studies with complexity theory and research. We argue that transition research is important for the understanding and development of possible sustainable future pathways. However, there are several controversies in transition research, including, the role of agency in transitions; the relationships between levels (niche, regime and landscapes); the origin of transitions; the identification of a transition, including starting and ending point of transition processes; and the paradox of replicability and scaling up of independent experiments. We argue that transition research, and future studies can benefit from taking complexity theory seriously. In the paper, we elaborate four insights from complexity studies that can move the research agenda of transition studies forward: empirically investigating the degree of complexity of a system; investigating complexity at the level of the policy-making system; longitudinal and retrospective research designs for the identification of transitions; methodological tools which accommodate complexity, such as agent-based modeling and ARIMA modeling. Further, we suggest how these can improve our knowledge of transitions towards sustainable future.  相似文献   
49.
The aim of this paper is to establish recurrence relations satisfied by product moments and covariances of kth records arising from discrete distributions. They will be evaluated for geometric underlying distribution. Then we use these results to obtain formulas for correlation coefficients of geometric kth records. We consider all three known types of kth records: strong, ordinary, and weak.  相似文献   
50.
By drawing from the internalisation and institutional theories, as well as the organisational capability perspective, the paper analyses the moderating effects of parent control over foreign affiliates in relation to firm capabilities and institutional distance and their performance effects. These relationships are explored in the context of new MNEs from Poland as a mid-range emerging economy, for which ownership choices constitute critical decisions given their early stage of internationalisation. Our findings show that while firm capabilities drive foreign affiliate performance, the increase of parent control limits this beneficial effect, suggesting the potential occurrence of organisational inertia and reduction of learning in foreign markets. On the contrary, we also find partial evidence that the increase of parent control reduces the negative effect of institutional distance computed based on the Mahalanobis formula. Accordingly, the study suggests a certain ambiguity of parent control in affecting affiliate performance.  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