Showing 1 - 10 of 18
During the last three decades various models have been proposed by the literature to predict the risk of bankruptcy and of firm insolvency, which make use of structural and empirical tools, namely rating system, credit scoring, option pricing and three alternative methods (fuzzy logic, efficient...
Persistent link: https://www.econbiz.de/10009386304
Le Reti Neurali Artificiali sono diventate uno strumento estremamente effcace nell'analisi di situazioni non ''predicibili'' analiticamente, e si prestano in maniera estremamente efficace alla modellizzazione di problemi di varia natura. In questo lavoro viene fatta una rassegna sulle origini e...
Persistent link: https://www.econbiz.de/10005628748
Italian Abstract: Questo lavoro indaga l'esistenza di una relazione tra la percezione dei media e l'andamento del mercato azionario statunitense. Su un campione di 7.132 notizie ottenute dal Wall Street Journal tra novembre 2011 e febbraio 2013 sono stati stimati, per mezzo dell'analisi...
Persistent link: https://www.econbiz.de/10013004852
Italian Abstract: La letteratura economica e quella dei principali organismi internazionali sui tassi di rendimento dei debiti sovrani dell'area euro non sembra aver preso in considerazione il tema in un ottica di intermediazione finanziaria, sul terreno suo proprio. In questo articolo si tenta...
Persistent link: https://www.econbiz.de/10013044531
Financial time series analysis has focused on data related to market trading activity. Next to the modeling of the conditional variance of returns within the GARCH family of models, recent attention has been devoted to other variables: first, and foremost, volatility measured on the basis of...
Persistent link: https://www.econbiz.de/10009643126
In questo articolo si sviluppa un nuovo approccio per il calcolo del Value-at-Risk che utilizza il Filtro di Kalman per stimare il beta dei titoli di un portafoglio. Tale tecnica viene applicata al portafoglio azionario di una società assicurativa e confrontata con i metodi tradizionali basati...
Persistent link: https://www.econbiz.de/10008547012
In this paper we address the issue of forecasting Value–at–Risk (VaR) using different volatility measures: realized volatility, bipower realized volatility, two scales realized volatility, realized kernel as well as the daily range. We propose a dynamic model with a flexible trend...
Persistent link: https://www.econbiz.de/10005075734
The transmission mechanisms of volatility between markets can be characterized within a new Markov Switching bivariate model where the state of one variable feeds into the transition probability of the state of the other. A number of model restrictions and hypotheses can be tested to stress the...
Persistent link: https://www.econbiz.de/10005731535
Multiplicative Error Models (MEM) can be used to trace the dynamics of non–negative valued processes. Interactions between several such processes are accommodated by the vector MEM and estimated by maximum likelihood (Gamma marginals with copula functions) or by Generalized Method of Moments....
Persistent link: https://www.econbiz.de/10005731539
This paper examines regional inflation divergence within the European EMU aiming at characterizing the properties of inflation differentials. The empirical evidence suggests that a process of price level convergence in the EMU is well on its way.
Persistent link: https://www.econbiz.de/10005731542