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Negli archivi amministrativi dell’INPS, e in particolare nei dati dell’Osservatorio delle Imprese, il settore di attività economica è identificato in base a diverse classificazioni. I dati più recenti riportano la codifica Ateco 2002, validata dall’ISTAT nell’ambito del progetto ASIA...
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L'aggancio tra i dati WHIP e quelli del Casellario degli Attivi consente l'osservazione di tutti i percorsi lavorativi, non solo quelli coperti dai dati INPS (o WHIP). Questa procedura ha permesso di dare una parziale risposta ad una domanda che ci si pone quando si usano i dati WHIP, o di fonte...
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In questo rapporto si presentano due informazioni sviluppate partendo dagli archivi degli episodi di lavoro dipendente di WHIP (archivi RL_annui_): gli oneri sociali obbligatori (variabile oneri_sociali) e il costo del lavoro (variabile costo_lavoro). Le stime degli oneri sociali obbligatori e...
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We define and investigate a new class of measure-valued Markov chains by resorting to ideas formulated in Bayesian nonparametrics related to the Dirichlet process and the Gibbs sampler. Dependent random probability measures in this class are shown to be stationary and ergodic with respect to the...
Persistent link: https://www.econbiz.de/10008518900
The paper proposes a new nonparametric prior for two-dimensional vectors of survival functions (S1,S2). The definition we introduce is based on the notion of Lévy copula and it will be used to model, in a nonparametric Bayesian framework, two-sample survival data. Such an application will yield...
Persistent link: https://www.econbiz.de/10008518902
A Bayesian nonparametric methodology has been recently proposed in order to deal with the issue of prediction within species sampling problems. Such problems concern the evaluation, conditional on a sample of size n, of the species variety featured by an additional sample of size m. Genomic...
Persistent link: https://www.econbiz.de/10008518906
A random distribution function on the positive real line which belongs to the class of neutral to the right priors is defined. It corresponds to the superposition of independent beta processes at the cumulative hazard level. The definition is constructive and starts with a discrete time process...
Persistent link: https://www.econbiz.de/10008518909