Pierre Hoonhout is associate professor in econometrics at the Lisbon School of Economics and Management (ISEG). His research interests include panel data, panel data attrition, missing data, causal inference, policy evaluation, response based sampling and reproducible research using R and Stata.
PhD in Econometrics
University College London
Msc in Mathematical Statistics
Universiteit van Amsterdam
Stata courses in the following topics:
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In panel surveys, some observation units drop out before the end of the observation period. This panel attrition cannot be ignored if it is related to the variables of interest. Hirano, Imbens, Ridder and Rubin (Econometrica, 2001) propose the Additively Nonignorable (AN) attrition model to correct for the potential selectivity of the attrition in panels with two periods. If a refreshment sample is available in the second period, their model nonparametrically just-identifies the population distribution and the observation probability. We propose the Sequential Additively Nonignorable attrition model, that just-identifies the population distribution and the sequence of observation hazards for panels with more than two periods.