We study the effects of aggregation on four different cases of nonlinear spatial gravity models. We present some theoretical results on the relationship between the mean flows at an aggregated level and the mean flow at the disaggregated level. We then focus on the case of perfect aggregation...

This paper investigates the price for contingent claims in a dual expected utility theory framework, the dual price, considering arbitrage-free nancial markets. A pricing formula is obtained for contingent claims written on n underlying assets following general Itô processes and without any...

We consider the problem of assessing new and existing technologies for their cost-effectiveness in the case where data on both costs and effects are available from a clinical trial, and we address it by means of the cost-effectiveness acceptability curve. The main difficulty in these analyses is...

Nel presente articolo si propone un nuovo modello per l'evoluzione del prezzo a pronti dell'elettricità basato sull'ipotesi che esistano due regimi diversi per la sua evoluzione: uno "normale" in cui i prezzi si discostano poco dai fattori che determinano il costo di produzione ed uno...

L'insider trading è configurato nella dottrina economica come una tipica asimmetria informativa ex ante; tale fenomeno prevede che la superiorità informativa di una parte a scapito dell'altra esiste ancora prima del verificarsi di un dato intervento. Solitamente l'insider trading viene visto ed...

the aim of this work is to estimate the structural parameters of a simultaneous equation system using both the Limited and Full Information Least Orthogonal Distance Estimator (Pieraccini, 1988; Naccarato, 2007). We compare the results - via simulation experiments – of LODE estimates with those...

This paper studies the effects of financial liberalization and banking crises on growth. It shows that financial liberalizations spurns on average economic growth. Banking crises are harmful for growth, but to a lesser extent in countries with oper financial system and good institutions. The...