  This paper updates Currie, Kleven, and Zwiers (2020) by examining the
credibility revolution across fields, including finance and macroeconomics,
using NBER working papers up to May 2024. While the growth in terms related to
identification and research designs have continued, finance and macroeconomics
have lagged behind applied micro. Difference-in-differences and regression
discontinuity designs have risen since 2002, but the growth in
difference-in-difference has been larger, more persistent, and more ubiquitous.
In contrast, instrumental variables have stayed flat over this period. Finance
and macro, particularly corporate finance, has experienced significant growth
in mentions of experimental and quasi-experimental methods and identification
over this time period, but a large component of the credibility revolution in
finance is due to difference-in-differences. Bartik and shift-share instruments
have grown across all fields, with the most pronounced growth in international
trade and investment, economic history, and labor studies. Synthetic control
has not seen continued growth, and has fallen since 2020.
