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51.
Turan G. Bali K. Ozgur Demirtas Haim Levy Avner Wolf 《Journal of Monetary Economics》2009,56(6):817-830
It has become increasingly popular to advise investors to relocate their funds from a primarily stock portfolio to a primarily bond portfolio as they get older. However, the well-known decision rules such as mean–variance or stochastic dominance rules are unable to explain this common practice. Almost stochastic dominance (ASD) and almost mean–variance (AMV) approaches are used to examine the dominance of stock and bond portfolios. ASD and AMV rules unambiguously support the popular practice of advising higher stock to bond ratio for long investment horizons. Hence, we provide an explanation to the practitioners’ recommendation within the expected utility paradigm. 相似文献
52.
Wolf Wagner 《Journal of Financial Services Research》2010,37(1):71-81
Recent literature (Boyd and De Nicoló, J Finance 60:1329–1343, 2005) has argued that competition in the loan market lowers bank risk by reducing the risk-taking incentives of borrowers. Using
a model where competition arises from falling switching costs for entrepreneurs, we show that the impact of loan market competition
on banks is reversed if banks can adjust their loan portfolios. The reason is that when borrowers become safer, banks want
to offset the effect on their balance sheet and switch to higher-risk lending. They even overcompensate the effect of safer
borrowers because loan market competition erodes their franchise values and thus increases their risk-taking incentives. 相似文献
53.
Martin Wolf 《国际经济合作》2009,(11):1-1
It is the season of dollar panic.These panic-mongers are varied: goldbugs, fiscal hawks and many others agree that the dollar, the dominant currency since the first world war, is on itsdeath bed. Hyperinflationary collapse 相似文献
54.
Onshore wind energy utilisation in Germany has developed very dynamically in the last decade. This has mainly been driven
by the renewable energy laws that systematically support the expansion of renewable energy in the electricity sector. In 2009
a revised law with increased feed-in tariffs for wind energy has come into force. Existing studies already predict a wide
range of development patterns under the Renewable Energy Sources Acts 2000 and 2004. This paper investigates the long term
impact of different feed-in tariffs implemented by the legislative authorities and it provides corresponding future development
patterns of onshore wind energy utilisation in Germany. The underlying System Dynamics model considers technical as well as
economic conditions and constraints. The approach and the model’s results are contrasted with other published predictions
qualitatively and quantitatively. This comparison shows that the model’s outcome lies in the range of predictions by existing
studies, but also shows some interesting differences.
Zusammenfassung Die Entwicklung der Windenergienutzung in Deutschland wahrend der letzten Dekade verlief sehr dynamisch. MagBgeblich dafur war die systematische Forde-rung mittels der Erneuerbare Energien Gesetze (EEG) bzw. deren Vorlaufer. Vom Jahr 2009 an gilt ein uberarbeitetes Gesetz, welches u.a. erhohte Einspeisever-gutungen furWindenergie beinhaltet.Vorliegende Studien, die sich mit derzu-kunftigen Entwicklung auseinandersetzten, zeigen bereits deutlich unterschied-liche Szenarien fur die Entwicklung unter dem EEG 2000 und 2004. Diese Arbeit setzt sich mit den langfristigen Auswirkungen der verschiedenen vom Gesetz-geber festgelegten Einspeisetarife auseinander und stellt entsprechend unter-schiedliche Ausbauszenarien fur die deutsche Onshore Windenergienutzung dar. Das zugrunde liegende System Dynamics Modell berucksichtigt dabei sowohl technische als auch okonomische Parameter. Der Ansatz sowie die Ergebnisse werden anderen veroffentlichten Prognosen gegenubergestellt. Die Ergebnisse liegen innerhalb der Spannbreite der anderen berucksichtigten Studien, zei-gen jedoch auch interessante Unterschiede.相似文献
55.
Modality analysis is a text analysis methodology that affords comparisons of how people from distinct cultural contexts differ
in their accounts of why one or more of their numbers find specific activities possible, impossible, inevitable, or contingent.
The technique is built around a two-part semantic grammar, the application of which involves the identification of modal clauses
in texts, the classification of these clauses according to their modal forms, and the identification of rationales associated
with the clauses’ modalities. We show that with sufficient training the method affords high interrater agreement. After providing
a few tips on data-collection strategies, results are presented from a modality analysis of editorials sampled from the Arab
newspaper, Al Riyadh, and the Hindi newspaper, Hindustan. The analysis illustrates how modal expressions can be used in locating well-known (e.g., Islamic and Hindu) cultural characteristics
from among the vast quantities of discourse that societies continuously generate. 相似文献
56.
This paper introduces optimal matching analysis (OMA) to the field of top management research. With this method, we develop six career patterns of top management team (TMT) members from five countries based on their international experience, organizational tenure and professional experience. The results provide strong support for the significance of these patterns, since each country (Denmark, Germany, Japan, the United Kingdom and the United States) shows one to four predominant career patterns of their managers and the occurrence of these patterns also differs significantly between the fields of activity within the TMT (chairperson, head of a division, primary activities and support activities). 相似文献
57.
Much effort has been dedicated to fighting wildlife crime with modest results. This paper focuses on marine wildlife crime, which suffers from a certain level of neglect due to terrestrial bias (a predominant focus on land animals). Despite legislative and enforcement efforts, there has been little integration of marketing techniques to curtail marine wildlife crime. For these reasons, we set out to study current issues surrounding marine wildlife crime by conducting interviews with three experts in areas of marine education, research, and legislation. The interviews provide an overview of the threats to marine wildlife, aid in the development of a classification of marine wildlife crime, and provide strategies as to what marketing actions may be useful to reduce it. 相似文献
58.
59.
Henning Sichelschmidt Peter Michaelis Mohammed Ansari Frank Weiss Torsten Tewes Jan Winiecki Richard Pomfret Jamuna P. Agarwal Richard Pomfret Hartmut Wolf Alfred Boss 《Review of World Economics》1993,129(1):183-201
Ohne Zusammenfassung 相似文献
60.
We examine the lead and lag relation between equity and credit default swap (CDS) markets. We find that price discovery in equity markets only leads CDS markets following aggregate positive news and not so following other news. While difficult to reconcile with standard asset pricing theories, asymmetric price adjustment is common in goods markets, arising from intermediary power. We provide an explanation for this asymmetry based on dealers exploiting informational advantages vis‐à‐vis investors with hedging motives. Consistent with this explanation, we find that the patterns we document are related to firm‐level proxies for hedging demand, as well as economy‐wide measures of information asymmetries. 相似文献