全文获取类型
收费全文 | 81篇 |
免费 | 1篇 |
专业分类
财政金融 | 16篇 |
工业经济 | 6篇 |
计划管理 | 31篇 |
经济学 | 11篇 |
旅游经济 | 1篇 |
贸易经济 | 16篇 |
经济概况 | 1篇 |
出版年
2024年 | 1篇 |
2022年 | 1篇 |
2020年 | 4篇 |
2018年 | 4篇 |
2016年 | 2篇 |
2015年 | 3篇 |
2014年 | 3篇 |
2013年 | 19篇 |
2012年 | 4篇 |
2011年 | 4篇 |
2010年 | 5篇 |
2009年 | 3篇 |
2008年 | 4篇 |
2007年 | 4篇 |
2006年 | 2篇 |
2005年 | 2篇 |
2004年 | 1篇 |
2002年 | 2篇 |
2001年 | 2篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 3篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1989年 | 1篇 |
1973年 | 1篇 |
1955年 | 1篇 |
排序方式: 共有82条查询结果,搜索用时 0 毫秒
11.
Martin Josef Geiger Author Vitae Author Vitae 《Socio》2010,44(1):25-34
This article presents a study of a practical assignment problem found in teaching within higher education. Here, students are assigned to scientific topics for which written papers must be submitted. Often, preferences across topics exist among other side constraints that should be considered in solving the problem of interest. Characterizing attributes of real-world problems were studied for scientific departments in Economics and Business Administration at German universities by sending out 800 questionnaires, and analyzing the 203 responses.Based on earlier studies, a Variable Neighborhood Search (VNS) approach was formulated to solve the resulting assignment problem. Several neighborhood search operators were tested, and numerical results are reported for a range of problem scenarios taken from real-world cases. It was observed that VNS leads to superior results vs. single operator local search approaches. Furthermore, we were able to show that in the studied problem, the effectiveness of certain neighborhoods was, to a large extent, dependent on the structures of the underlying problem.An extension of the problem was formulated by integrating a second objective function, which simultaneously balances the workload of staff members while maximizing student utility. The VNS approach was implemented in a computer system, available free of charge, providing decision support for selected other institutions within higher education. 相似文献
12.
Over the last decades, spatial-interaction models have been increasingly used in economics. However, the development of a sufficiently general asymptotic theory for nonlinear spatial models has been hampered by a lack of relevant central limit theorems (CLTs), uniform laws of large numbers (ULLNs) and pointwise laws of large numbers (LLNs). These limit theorems form the essential building blocks towards developing the asymptotic theory of M-estimators, including maximum likelihood and generalized method of moments estimators. The paper establishes a CLT, ULLN, and LLN for spatial processes or random fields that should be applicable to a broad range of data processes. 相似文献
13.
This research examines two modes of assessment of environmental health risks and the transformation of these risks into public health issues while relying on the specific case of well‐water toxicity and mega dose of electromagnetic radiation found in one prosperous town in the center of Israel – Ramat ha‐Sharon. Based on official and scientific documentation and interviews conducted at three time periods with randomly selected town residents from contaminated neighborhoods (N = 169), this study shows the discrepancy between the ‘objective’ experts’ standards for assessing environmental health risks and the public’s subjective perception and evaluation of the impact of these risks on their health and well‐being. Even though, by experts’ standards, the well‐water toxicity remained constant over the three interview sessions, Ramat ha‐Sharon town residents’ subjective levels of concern and perception of risk fluctuated as a function of news media and municipality announcements and residents’ perceived ability to minimize the risk. This study also shows the complex and multidisciplinary nature of environmental health risk assessments and the need to relocate them into the broader socioeconomic and political context in which they are embedded. 相似文献
14.
We investigate the leverage cycle in Luxembourg’s banking sector using individual bank-level data for the period 2003 Q1–2010 Q1. One of our findings is that Luxembourg’s banks have a procyclical leverage. This procyclicality is not due to marking-to-market but because Luxembourg’s banks are liquidity providers to the EU banking sector. We then empirically investigate the role of bank characteristics as well as real, financial and expectation variables that proxy for macroeconomic conditions in the pre-crisis and crisis period. We find that off-balance sheet exposures have different effects in the pre-crisis and crisis period, and that the share of liquid assets in the portfolio only affects security holdings. As for macroeconomic variables, we find that the Euribor-OIS spread is a significant driver of the build-up in leverage in the pre-crisis period. The reason is that most banks in Luxembourg are either branches or subsidiaries. This makes leverage a less relevant indicator of riskiness for investors. It also implies that in times of liquidity shortages, mother companies or groups demand further liquidity from their branch or subsidiary. The downturn in leverage during the crisis can be accredited to reductions in expectations, which we proxy by an economic sentiment indicator. It can also be explained by increasing bond prices which induce depositors to shift their funds from bank deposits into bonds. We find no important role for GDP growth. 相似文献
15.
Many service classifications have provided helpful yet partial perspectives on the heterogeneity of services. This paper reconciles and integrates different earlier classifications into a new holistic typology of the service economy which is based on detailed statistical service sectors. Moreover, the paper assesses the empirical value of this taxonomy to capture the diversity of services development in time and space. A regional analysis of employment data in Germany provides evidence that knowledge intensive as well as business services follow very different sectoral and spatial dynamics than operational and consumer services. This typology yields differential insights in longitudinal and comparative regional analysis of the service economy. 相似文献
16.
The paper derives a general Central Limit Theorem (CLT) and asymptotic distributions for sample moments related to panel data models with large n. The results allow for the data to be cross sectionally dependent, while at the same time allowing the regressors to be only sequentially rather than strictly exogenous. The setup is sufficiently general to accommodate situations where cross sectional dependence stems from spatial interactions and/or from the presence of common factors. The latter leads to the need for random norming. The limit theorem for sample moments is derived by showing that the moment conditions can be recast such that a martingale difference array central limit theorem can be applied. We prove such a central limit theorem by first extending results for stable convergence in Hall and Heyde (1980) to non-nested martingale arrays relevant for our applications. We illustrate our result by establishing a generalized estimation theory for GMM estimators of a fixed effect panel model without imposing i.i.d. or strict exogeneity conditions. We also discuss a class of Maximum Likelihood (ML) estimators that can be analyzed using our CLT. 相似文献
17.
18.
By linking industrial organization theory and capital market research, we provide empirical evidence that merger motives of firms are influenced by underlying industry concentration. Analyzing wealth effects on target, acquirer and rival firms in the machinery industry, we observe significant different capital market reactions among merger announcements in dependence of underlying industry concentration. suggesting that different takeover motives prevail in fragmented and concentrated industries. In contrast to previous studies, we find besides efficiency motives evidence for monopolistic collusion motives in fragmented industries. Mergers in concentrated industries are primarily motivated to achieve productive efficiency gains. The absence of collusion motives may be an indication for a successful enforcement of antitrust legislation. Our results suggest that the magnitude of the influence of industry concentration in empirical merger motive research may have been previously under-estimated leading to a potential distortion of results. 相似文献
19.
“Environmental dumping” is a concern frequently raised in discussions on the potential risks involved in the eastern enlargement
of the European Union1 (EU).2 There is a general concern that the Central and Eastern European accession countries may be neither willing nor able to fully
apply the EU’s environmental acquis communautaire, the body of Community environmental legislation, once they have joined
the EU. As a result, these countries would benefit from a competitive advantage when selling their goods on the Internal Market.
This article asks whether, and in which specific cases, such concerns may be justified. 相似文献
20.
Kurt Geiger 《Thunderbird国际商业评论》2008,50(6):369-374
The public mission of the European Bank for Reconstruction and Development (EBRD) is to foster the transition toward an open, market‐oriented financial sector. It combines private‐sector principles in making investments, building institutions, privatizing banks, and raising equity with policy dialogue with all stakeholders, lawmakers, central banks, regulators, shareholders, and clients. Wellstructured creative individual projects, tailor‐made for the specific situation and executed in a pragmatic and successful way, provide a strong demonstration effect to market participants. Today the financial sector in Central and Eastern Europe is sound, competitive, and provides the fuel for sustained economic growth. Challenges remain, however. © 2008 Wiley Periodicals, Inc. 相似文献