全文获取类型
收费全文 | 308篇 |
免费 | 14篇 |
专业分类
财政金融 | 41篇 |
工业经济 | 17篇 |
计划管理 | 43篇 |
经济学 | 86篇 |
综合类 | 1篇 |
运输经济 | 1篇 |
旅游经济 | 5篇 |
贸易经济 | 100篇 |
农业经济 | 2篇 |
经济概况 | 22篇 |
邮电经济 | 4篇 |
出版年
2023年 | 6篇 |
2021年 | 9篇 |
2020年 | 10篇 |
2019年 | 14篇 |
2018年 | 15篇 |
2017年 | 23篇 |
2016年 | 21篇 |
2015年 | 16篇 |
2014年 | 26篇 |
2013年 | 36篇 |
2012年 | 32篇 |
2011年 | 24篇 |
2010年 | 10篇 |
2009年 | 23篇 |
2008年 | 9篇 |
2007年 | 6篇 |
2006年 | 9篇 |
2005年 | 2篇 |
2004年 | 5篇 |
2003年 | 8篇 |
2002年 | 5篇 |
2001年 | 4篇 |
2000年 | 1篇 |
1998年 | 2篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1975年 | 1篇 |
1966年 | 1篇 |
1938年 | 1篇 |
排序方式: 共有322条查询结果,搜索用时 234 毫秒
121.
122.
Wolfgang Bessler Julian Holler Philipp Kurmann 《Financial Markets and Portfolio Management》2012,26(1):109-141
This paper analyzes the contribution of hedge funds to optimal asset allocations between 1993 and 2010. The preferences of
specific institutional investors are captured by implementing a Bayesian asset allocation framework that incorporates heterogeneous
expectations regarding hedge fund alpha. Mean-variance spanning tests are used to infer the ability of hedge funds to significantly
enhance the mean-variance efficient frontier. Further, a novel democratic variance decomposition procedure sheds light on
the dynamics in the co-movement of hedge fund returns with a set of common benchmark assets. The empirical findings indicate
that portfolio benefits of hedge funds are time-varying and strongly depend on investor optimism regarding hedge funds’ ability
to generate alpha. In general, allocations to hedge funds improve the global minimum variance portfolio even after controlling
for short-selling restrictions and minimum diversification constraints. However, due to dynamics underlying the composition
of the aggregate hedge fund universe, the factor structure of hedge fund returns has become more similar to the benchmark
assets over time. 相似文献
123.
Entrepreneurial orientation in long-lived family firms 总被引:2,自引:0,他引:2
We apply a key construct from the entrepreneurship field, entrepreneurial orientation (EO), in the context of long-lived family
firms. Our qualitative in-depth case studies show that a permanently high level of the five EO dimensions is not a necessary
condition for long-term success, as traditional entrepreneurship and EO literature implicitly suggest. Rather, we claim that
the level of EO is dynamically adapted over time and that the original EO scales (autonomy, innovativeness, risk taking, proactiveness, and competitive aggressiveness) do not sufficiently capture the full extent of entrepreneurial behaviors in long-lived family firms. Based on these considerations
we suggest extending the existing EO scales to provide a more fine-grained depiction of firm-level corporate entrepreneurship
in long-lived family firms. 相似文献
124.
Barnett and Block (J Bus Ethics 18(2):179–194, 2011) argue that one cannot distinguish between deposits and loans due to the continuum problem of maturities and because future
goods do not exist—both essential characteristics that distinguish deposit from loan contracts. In a similar way but leading
to opposite conclusions (Cachanosky, forthcoming) maintains that both maturity mismatching and fractional reserve banking
are ethically justified as these contracts are equivalent. We argue herein that the economic and legal differences between
genuine deposit and loan contracts are clear. This implies different legal obligations for these contracts, a necessary step
in assessing the ethics of both fractional reserve banking and maturity mismatching. While the former is economically, legally,
and perhaps most importantly ethically problematic, there are no such troubles with the latter. 相似文献
125.
126.
In single-obligor default risk modeling, using a background filtration in conjunction with a suitable embedding hypothesis
(generally known as ℍ-hypothesis or immersion property) has proven a very successful tool to separate the actual default event from the model for the default arrival intensity.
In this paper we analyze the conditions under which this approach can be extended to the situation of a portfolio of several obligors, with a particular focus on the so-called top-down approach. We introduce the natural ℍ-hypothesis of this setup
(the successive ℍ-hypothesis) and show that it is equivalent to a seemingly weaker one-step ℍ-hypothesis. Furthermore, we provide a canonical construction of a loss process in this setup and provide closed-form solutions
for some generic pricing problems.
Financial support by the National Centre of Competence in Research “Financial Valuation and Risk Management” (NCCR FINRISK)
is gratefully acknowledged. NCCR FINRISK is a research program supported by the Swiss National Science Foundation (SNSF).
The authors would like to thank Monique Jeanblanc and two anonymous referees for their helpful comments and suggestions. Parts
of this paper were presented at RiskDay 2006, Zurich. All remaining errors are our own. Comments and suggestions are very
welcome. 相似文献
127.
128.
Philipp Bachmann 《International Journal of Strategic Communication》2017,11(1):79-94
Due to structural changes in the media industry, the topic of CSR has gained more and more attention among media companies. Our research question was whether media companies can gain legitimacy through CSR disclosures. There is reason to assume that CSR disclosures both directly increase and indirectly decrease a media company’s legitimacy. On one hand, CSR is regarded as a means of strengthening legitimacy; on the other hand, stakeholders might become skeptical and distrust disclosures about generous deeds. The experimental study detailed here considers both possibilities by using five CSR disclosures of a fictional media company as the stimuli, ranging from low- to high-communicated CSR engagement (single-factor between-groups design, 274 participants). According to the results of the Structural Equation Model (SEM), both assumptions are incorrect: CSR is not the crucial factor in determining whether or not stakeholders perceive a media company as legitimate, but rather its corporate credibility. 相似文献
129.
Philipp Koziol 《The Quarterly Review of Economics and Finance》2014,54(4):459-472
Firms that export goods face risks such as product price, cost, and exchange rate risks. Price and cost risks can substantially reduce the FX hedging performance in real wealth. We thus investigate hedging strategies that are intended to improve the performance of the FX hedge in real terms using inflation and interest rate derivatives. The impact of these additional instruments is not clear and has only been briefly analyzed in the hedging literature so far. For this purpose, we derive variance-minimizing hedge positions of an exporting firm. A cointegrated VAR and bootstrap methods are used to evaluate the efficiencies of several hedging strategies. While inflation derivatives work better in the short run, interest rate derivatives perform better over longer hedge horizons. 相似文献
130.
The German “Energiewende” is progressing more slowly than intended. Despite of high feed-in tariffs, private investors remain cautious due to the risk profiles, especially in offshore wind. Sensitivities of DCF-based investment models confirm material risk impact, especially from lower wind availability and construction cost overruns. Political focus on the timely grid connection of regional feed-in tariff differentiation may not address investor needs, with the result that this will remain costly. The forthcoming updates to the renewable energy law should seek to mitigate wind availability risk; ease contributions from insurance companies, pension funds and private equity; and support financial innovation. 相似文献