The fourth edition (4.1) of the School of Advanced Training “Public Policy Impact Assessment. Concept, Methods, Applications”, organized by the Rossi-Doria Center and the Department of Economics, Roma Tre University, will be held (online) from 13 to 17 September p.v. The inaugural lecture: La cultura della valutazione is held by Raffaello Bronzini (Bank of Italy) on September 13th at 10:45 am. The closing lecture:  L'utilizzo degli studi randomizzati per valutare l'impatto delle politiche sociali: due esperimenti in Italia  are held by Eliana La Ferrara (Bocconi University) on 17 September at 2.30pm. Both can be followed in streaming http://streaming.uniroma3.it/rossi-doria/