seminario

[Pietro Muliere <pietro.muliere@uni-bocconi.it>]

Istituto Metodi Quantitativi - Università L. Bocconi
Viale Isonzo, 25 - 20135 Milano
Tel. 02-58365629  - Fax 02-58365630



SEMINARIO


The persistence of poverty: true state dependence or unobserved 
heterogeneity? Some evidence from the Italian Survey on Household Income 
and Wealth


Prof. Enrico Rettore
Dipartimento di Scienze Statistiche
Università di Padova






mercoledì, 30 aprile 2003 - ore 16.30
Aula IMQ  stanza n.137

________________________________________________________________________________Abstract. 
Evidence from several countries is that any household experiencing poverty 
today is much more likely to experience it again, which may be due to both 
true state dependence (TSD) and unobserved heterogeneity (UH). In this 
context, there are two sources of UH: (i) the household’s ability to obtain 
income in a specific time period and (ii) the way in which this ability 
evolves from that time period onwards. We tested for TSD using a panel from 
Italy. After testing for the ignorability of the massive attrition plaguing 
the panel and accepting it, we did not find any sign of TSD. The paper is 
joint work with Anna Giraldo and Ugo Trivellato

Keywords: Attrition ignorability, Discrete response panel data models, 
Poverty dynamics.
JEL-code: I32, C23, C25