By contrast, outstanding obituary in @TheEconomist , explaining what the contribution was (partly relying on the amusement park example I posted here).
https://www.economist.com/finance-and-economics/2023/05/18/robert-lucas-was-a-giant-of-macroeconomics
🐦🔗: https://n.respublicae.eu/lugaricano/status/1659240553890840584