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The volatility implied by observed market prices as a function of the strike and time to maturity form an Implied Volatility Surface (IVS). Practical applications require reducing the dimension and characterize its dynamics through a small number of factors. Such dimension reduction is...
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relations and cross-dependencies between the individual variables. This confirms economic theory and suggests more parsimonious …
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by von Neumann and Morgenstern (1944) via a concave utility function, is considered to be a cornerstone of classical … market utility functions are convex. In this paper we have constructed a test to verify uncertainty about the concavity of … agents' utility function by testing the monotonicity of empirical pricing kernels (EPKs). A monotone decreasing EPK …
Persistent link: https://www.econbiz.de/10003635940
Empirical studies have shown that a large number of financial asset returns exhibit fat tails and are often characterized by volatility clustering and asymmetry. Also revealed as a stylized fact is Long memory or long range dependence in market volatility, with significant impact on pricing and...
Persistent link: https://www.econbiz.de/10003636008
A great proportion of stock dynamics can be explained using publicly available information. The relationship between dynamics and public information may be of nonlinear character. In this paper we offer an approach to stock picking by employing so-called decision trees and applying them to XETRA...
Persistent link: https://www.econbiz.de/10003636039
In recent years support vector regression (SVR), a novel neural network (NN) technique, has been successfully used for financial forecasting. This paper deals with the application of SVR in volatility forecasting. Based on a recurrent SVR, a GARCH method is proposed and is compared with a moving...
Persistent link: https://www.econbiz.de/10003636113