%0 Report %A Guerzoni, Marco %A Riso, Luigi %A Vivarelli, Marco %T Was Robert Gibrat Right? A Test Based on the Graphical Model Methodology %D 2023 %8 2023 Mar %I Institute of Labor Economics (IZA) %C Bonn %7 IZA Discussion Paper %N 15995 %U https://www.iza.org/publications/dp15995 %X Using both regression analysis and an unsupervised graphical model approach (never applied before to this issue), we confirm the rejection of the Gibrat's law when our firm-level data are considered over the entire investigated period, while the opposite is true when we allow for market selection. Indeed, the growth behavior of the re-shaped (smaller) population of the survived most efficient firms is in line with the Law of Proportionate Effect; this evidence reconciles early and current literature testing Gibrat's law and may have interesting implications in terms of both applied and theoretical research. %K Gibrat's Law %K firm survival %K market selection %K firm growth