This study exploits a new dataset in order to quantify the effect of financial incentives on retirement choices. This dataset contains - for the first time in Italy -information on seniority. In accordance with the general finding in Gruber and Wise (2004), we find that financial incentives have an effect on retirement. The effect goes in the expected direction; when employees become eligible for pension benefits the change in financial incentives they experience is so high that their retirement probability increases in a sizable way.We also find that the procedure to impute seniority used in previous studies leads to a sizable measurement error. Due to this measurement error, the key parameters of the model are inconsistently estimated. Ou...