Showing 1 - 10 of 155
We consider consistent tests for stochastic dominance efficiency at any order of a given portfolio with respect to all possible portfolios constructed from a set of assets. We justify block bootstrap approaches to achieve valid inference in a time series setting. The test statistics are computed...
Persistent link: https://www.econbiz.de/10005858776
Stock picking is the field of financial analysis that is of particular interest for many professional investors and researchers. In this study stock picking is implemented via binary classification trees. Optimal tree size is believed to be the crucial factor in forecasting performance of the...
Persistent link: https://www.econbiz.de/10005860532
We experimentally explore individual and interactive decision making ina sequential search task and test whether generally accepted principles ofbounded rationality (aspiration formation, satisficing, and aspiration adjustment)adequately explain the observed search behavior. Subjects can, at...
Persistent link: https://www.econbiz.de/10005866656
We introduce an adaptive importance sampling method for the loss distribution of credit portfolios based on the Robbins-Monro stochastic approximation procedure. After presenting the subtle construction of the algorithm, we apply our adaptive scheme for calculating the risk figures of a typical...
Persistent link: https://www.econbiz.de/10005858875
This survey is devoted to the statistical analysis of duration models and point processes. Thefirst section introduces specific concepts and definitions for single-spell duration models.Section two is devoted to the presentation of conditional duration models which incorporatethe effects of...
Persistent link: https://www.econbiz.de/10005862320
Die ökonomische Sinnhaftigkeit der Forderung nach schwacher Wertadditivität vonSicherheitsäquivalenten ist in Abhängigkeit vom jeweiligen Bewertungszweck zu diskutieren.Hierbei muss grundsätzlich zwischen der unternehmensexternen Bewertungssichtund der unternehmensinternen Steuerungssicht...
Persistent link: https://www.econbiz.de/10005868264
Credit risk transition probabilities between aggregate portfolio classes constitute a very useful tool when individual transition data are not available. Jones (2005) estimates Markovian Credit Transition Matrices using an adjusted least squares method. Given the arguments of Judge and Takayama...
Persistent link: https://www.econbiz.de/10005870085
Actual performance measurement systems do not only consider financial measures like costs and profits but also non-financial indicators with respect customer service, quality and flexibility. Using the newsvendor model we explore the influence of possibly conflicting performance measures on...
Persistent link: https://www.econbiz.de/10005870717
We introduce new stylometry tools based on the sliced conditional compression complexity of literary texts which are inspired by the nearly optimal application of the incomputable Kolmogorov conditional complexity (and presumably approximates it). Whereas other stylometry tools can occasionally...
Persistent link: https://www.econbiz.de/10005860841
relations and cross-dependencies between the individual variables. This confirms economic theory and suggests more parsimonious …
Persistent link: https://www.econbiz.de/10005860983