PropertyValue
?:abstract
  • This paper is concerned with the discrete time stochastic volatility model Yi=exp(Xi/2)ηi, Xi+1=b(Xi)+σ(Xi)ξi+1, where only (Yi) is observed. The model is re-written as a particular hidden model: Zi=Xi+εi, Xi+1=b(Xi)+σ(Xi)ξi+1, where (ξi) and (εi) are independent sequences of i.i.d. noise. Moreover, the sequences (Xi) and (εi) are independent and the distribution of ε is known. Then, our aim is to estimate the functions b and σ2 when only observations Z1,…,Zn are available. We propose to estimate bf and (b2+σ2)f and study the integrated mean square error of projection estimators of these functions on automatically selected projection spaces. By ratio strategy, estimators of b and σ2 are then deduced. The mean square risk of the resulting estimators are studied and their rates are discussed. Lastly, simulation experiments are provided: constants in the penalty functions defining the estimators are calibrated and the quality of the estimators is checked on several examples. (xsd:string)
?:contributor
?:dateModified
  • 2009 (xsd:gyear)
?:datePublished
  • 2009 (xsd:gyear)
?:doi
  • 10.1016/j.jeconom.2009.07.001 ()
?:duplicate
?:hasFulltext
  • true (xsd:boolean)
is ?:hasPart of
?:inLanguage
  • en (xsd:string)
?:isPartOf
?:issueNumber
  • 1 (xsd:string)
?:linksDOI
?:linksURN
is ?:mainEntity of
?:name
  • Adaptive estimation of the dynamics of a discrete time stochastic volatility model (xsd:string)
?:provider
?:publicationType
  • Zeitschriftenartikel (xsd:string)
  • journal_article (en)
?:sourceInfo
  • GESIS-SSOAR (xsd:string)
  • In: Journal of Econometrics, 154, 2009, 1, 59-73 (xsd:string)
rdf:type
?:url
?:urn
  • urn:nbn:de:0168-ssoar-261755 ()
?:volumeNumber
  • 154 (xsd:string)