Showing 81 - 90 of 39,566
Persistent link: https://www.econbiz.de/10014326499
Persistent link: https://www.econbiz.de/10013169017
Two main areas of application of mathematics in finance are the valuation of financial instruments and the quantification of risk inherent in portfolios consisting of financial instruments. The mathematical models used in both areas were criticized in the aftermath of the financial crisis, due...
Persistent link: https://www.econbiz.de/10013036873
The potential market demand has a major impact on the probability of Initial Coin Offerings (ICOs) success of Blockchain-based platforms. However, the exact market demand is difficult to estimate because the goods or services provided by the Blockchain-based platforms are generally hard to...
Persistent link: https://www.econbiz.de/10014239057
A simple and commonly used method to approximate the total claim distribution of a (possible weakly dependent) insurance collective is the normal approximation. In this article, we investigate the error made when the normal approximation is plugged in a fairly general distribution-invariant risk...
Persistent link: https://www.econbiz.de/10003973663
We propose a bootstrap-based robust high-confidence level upper bound (Robust H-CLUB) for assessing the risks of large portfolios. The proposed approach exploits rank-based and quantile-based estimators, and can be viewed as a robust extension of the H-CLUB method (Fan et al., 2015). Such an...
Persistent link: https://www.econbiz.de/10013030688
Every model presents an approximation of reality and thus modeling inevitably implies model risk. We quantify model risk in a non-parametric way, i.e., in terms of the divergence from a so-called nominal model. Worst-case risk is defined as the maximal risk among all models within a given...
Persistent link: https://www.econbiz.de/10013034905
We examine which methods are appropriate for estimating dynamic panel data models in empirical corporate finance. Our simulations show that the instrumental variable and GMM estimators are unreliable, and sensitive to the presence of unobserved heterogeneity, residual serial correlation, and...
Persistent link: https://www.econbiz.de/10013069483
Distance-to-default is a remarkably robust measure for ranking firms according to their risk of default. The ranking seems to work despite the fact that the Merton model from which the measure is derived produces default probabilities that are far too small when applied to real data. We use...
Persistent link: https://www.econbiz.de/10013077688
US firm cash holdings have become increasingly concentrated over time withering shareholder returns and heightening agency problems associated with free cash flows. Our use of a robust regression technique (LAD) and a state-of-the-art variable selection procedure (LASSO) to identify the...
Persistent link: https://www.econbiz.de/10013220069