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Long memory in conditional variance is one of the empirical features of most financial time series. One class of models that was suggested to capture this behavior refers to the so-called Fractionally Integrated GARCH processes (Baillie, Bollerslev and Mikkelsen 1996) in which the ideas of...
Persistent link: https://www.econbiz.de/10005731538
Introduzione – 1. Calcio e borsa – 2. Indici di borsa e calcio: l’indice Dow Jones Stoxx Football – 3. Il legame tra borsa e risultati agonistici – 4. Le squadre e gli incontri nella nostra analisi – 5. La relazione tra risultati in campo e andamento del titolo delle squadre – 6....
Persistent link: https://www.econbiz.de/10008492663
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 this paper we investigate the existence of the economies of scale and density in the Italian water sector, in the period 2005-2007. For this purpose, given the current developments of the reform introduced by the Galli Law, we review the main studies on the cost variables and on the evidence...
Persistent link: https://www.econbiz.de/10009200948
We analyze several measures of volatility (realized variance, bipower variation and squared daily returns) as estimators of integrated variance of a continuous time stochastic process for an asset price. We use a Multiplicative Error Model to describe the evolution of each measure as the product...
Persistent link: https://www.econbiz.de/10005812866
Persistent link: https://www.econbiz.de/10008509948
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
Questo saggio analizza il NAIRU utilizzando un VAR cointegrato e dati che riferiscono al mercato del lavoro italiano. In questo saggio si mostrerà perché un VAR cointegrato rappresenta un approccio statisticamente adeguato alla stima del NAIRU, cioè un modo efficace di superare i diversi...
Persistent link: https://www.econbiz.de/10008547019
Nell'ottica di una valutazione dell'impatto di riforme del sistema di imposte e benefici sull'offerta di lavoro, sulla finanza pubblica e sulla distribuzione del reddito rivestono fondamentale importanza la qualità e la reliability dei dati necessari alla costruzione del data-set di variabili...
Persistent link: https://www.econbiz.de/10005011851
Nonlinear time series models can exhibit components such as long range trends and seasonalities that may be modeled in a flexible fashion. The resulting unconstrained maximum likelihood estimator can be too heavily parameterized and suboptimal for forecasting purposes. The paper proposes the use...
Persistent link: https://www.econbiz.de/10005075728