Guido W. Imbens delivered his prize lecture "Causality in econometrics: methods in conversation with practice" on 8 December 2021. He was introduced by Professor Per Johansson.

The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 2021 was divided, one half awarded to David Card "for his empirical contributions to labour economics", the other half jointly to Joshua D. Angrist and Guido W. Imbens "for their methodological contributions to the analysis of causal relationships."