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We study tail probabilities of the suprema of Lévy processes with subexponential or exponential marginal distributions over compact intervals. Several of the processes for which the asymptotics are studied here for the first time have recently become important to model financial time series....
Persistent link: https://www.econbiz.de/10008875588
Persistent link: https://www.econbiz.de/10004900163
We examine the impact of sustainability criteria, as measured by the KLD scores, on optimal portfolio selection performed on an investment universe containing the equities in the S&P500 index and covering the period between 1993 and 2008. The optimizations are done according to the Markowitz...
Persistent link: https://www.econbiz.de/10008685649
This present paper relates the results of an exploratory survey distributed among individuals invested in so-called ethical (or socially responsible) mutual funds, and attempts to develop a better understanding of these individuals’ ethical beliefs – especially concerning whether, or why,...
Persistent link: https://www.econbiz.de/10009277312
This study’s ultimate goal is to analyze environmental performance (EP) at firm level and the effectiveness of environmental policy along with other possible determinants. Especially, the empirical analysis aims at exploring the relationship between the actual EP of firms in terms of CO2...
Persistent link: https://www.econbiz.de/10009277313
Although much research has been published on green/ethical consumer behaviour, the question of how consumers evaluate pro-socially positioned products in the post-purchase stage is still virtually unexplored. This is troubling given the significance of post-purchase evaluations within general...
Persistent link: https://www.econbiz.de/10009277314
We analyse with an event study approach the stock market reaction to Lehman Brothers' ling for chapter 11. Our inquiry on abnormal returns of about 2,700 stocks around the event date documents that RiskMetrics-KLD corporate governance and product quality indexes capture factors a ecting...
Persistent link: https://www.econbiz.de/10009277910
The first of July 1952, the moped was legislatively excluded from existing restrictions for heavier two-wheeled motorized vehicles. A driver/owner of a “bicycle with auxiliary engine” – this was the original denomination of the vehicle – thus needed no registration, driver’s license or...
Persistent link: https://www.econbiz.de/10010818703
The theory of technological evolution and organizational lock-in are based on an empirical foundation where technology is manifested in a tangible product. However, in industries producing chemicals, services, art, health care, or complex product systems, the technological design of the product...
Persistent link: https://www.econbiz.de/10010818704
This paper presents a Finite Element Model, which has been used for forecasting the diffusion of innovations in time and space. Unlike conventional models used in diffusion literature, the model considers spatial heterogeneity. The implementation steps of the model are explained by applying it...
Persistent link: https://www.econbiz.de/10010818705