Invited Speaker, Frontiers in Causal Inference (IMSI), University of Chicago

Invited Speaker, Brazilian Econometric Society Conference, Foz do Iguaçu (Brazil)

Keynote Speaker, Southern Economic Association Conference, Houston

Keynote Speaker, Canadian Econometrics Study Group, Vancouver

MSU Fall Econometrics Workshop, Michigan State University

Invited Speaker, EEA Meetings, Dublin

Keynote Speaker, COMPIE, Paris (France)

NAMES at Emory, Atlanta

Plenary Speaker, American Causal Inference Conference, Salt Lake City

Short Course on DiD, Brazilian Central Bank, Brasilia (Brazil)

Seminar, Harvard Medical School

Seminar, Applied Statistics Workshop, Harvard

Economics Seminar, Brandeis University

DiD Workshop, PolMeth Summer Meeting, Atlanta

6th Summer School in Advanced Economics, Spetses Island (Greece)

Keynote Speaker, UC3M-Alumni Conference, Madrid (Spain)

Economics Seminar, UFSC (Brazil, Virtual)

Econometrics Seminar, Rice University

Microeconometrics Mini-Conference, Clemson University

Econometrics Seminar, Boston University

Econometrics Seminar, Stanford University

SEA Conference, DC

Keynote Speaker, STATA Texas Empirical Micro Conference, Dallas

NABE TEC Economics Conference, Seattle

DiD Workshop, Department of Justice

Economics Seminar, Georgia State University (Robinson School of Business)

Causal Inference Seminar, Google

Causal Inference Seminar, Instacart

DiD Workshop, Amazon - PXT Central Science, Seattle

Econometrics Seminar, U Nacional de La Plata (Argentina)

ASSA Annual Meeting, San Antonio

Brazilian Econometric Society Conference, Rio de Janeiro (Brazil)

SEA Conference, New Orleans

DiD Workshop, Emory University

Seminar, Yale Quantitative Methods Workshop

DiD Mini-course, UNU-WIDER, Helsinki (Finland)

Causal AI Conference, New York

DiD Mini-Conference, UCLA/CCPR

DiD Mini-Course, UCLA

Economics Seminar, NY Fed

Economics Seminar, Microsoft Research New England

DiD Minicourse, Georgetown Center for Econometric Practice

Econometrics Seminar, Georgetown

Difference-in-Differences Workshop, University of Michigan's Population Dynamics and Health Program

Econometrics Seminar, Duke

North American Winter Meeting of the Econometric Society, New Orleans

DiD Minicourse, EESP-FGV, Sao Paulo (Brazil)

DiD Minicourse, Brazilian Econometric Society Conference, Fortaleza (Brazil)

SEA Conference, Fort Lauderdale

Econometrics Seminar, Emory University

Econometrics Seminar, Northwestern University

Econometrics Seminar, UIUC

Econometrics Seminar, Queen Mary University of London (UK)

Bonn-Mannheim Online Econometrics Seminar, Virtual

Econometrics Seminar, U Colorado Boulder

Guest Lecture on DiD, Vanderbilt U (Dpt of Leadership, Policy, and Organizations)

Interactions Conference, U Wisconsin Madison

Applied Micro Seminar, Chicago Booth

Health Policy Grand Rounds, Vanderbilt U

CEnREP Colloquium, NC State

Econometrics Seminar, Korea-America Economic Association (Virtual)

Conference, 5th GOFCP workshop (Goodness-Of-Fit and Change-Point), Rennes (France)

Summer School on DiD designs, University of Southern Denmark, Odense (Denmark, virtual)

Northwestern Workshop on Research Design for Causal Inference, Northwestern University

Economics Seminar, EU Commission - JRC

Economics Seminar, CAF - Development Bank of Latin America (Virtual)

IAAE Conference, London UK

Econometrics Seminar, Seoul National University

Econometrics Seminar, Tilburg (Netherlands, virtual) - postponed

General Talk, Econisers - U Autonoma de Barcelona/ Barcelona School of Economics (Spain, virtual)

Economics Seminar, West Virginia University

Guest Lecture on DiD, Harvard University

General talk on DiD Topics for PhD Students, Princeton University

Short Course on DiD Designs, University of Washington

Seminar, Center for Statistics and the Social Sciences, University of Washington

Webinar, One World YoungStats Webinar

Plenary talk, XVII Escola de Modelos de Regressão, Brazil

Conference, Southern Economic Association

Econometrics Seminar, U Virginia

Short Course on DiD, U Rosario (Colombia)

Conference, LACEA-LAMES

Econometrics Seminar, U Washington

Short Course on DiD, Statistical Horizons

Conference (discussant), Health Econometrics Conference

Statistics Seminar, North Carolina A&T State U

Economics Seminar, Urban Institute

Biostatistics Seminar, John Hopkins U

Short Course on DiD, Statistical Horizons

Economics Seminar, U Rosario (Colombia)

Guest Lecture on DiD, Getulio Vargas Foundation, Rio (Brazil)

Conference, Stata Conference

Economics Seminar, Carnegie Mellon U - U Pittsburg joint seminar

Conference, IAAE

Conference, Summer Meeting of the Econometric Society

Economics Seminar, United Nations University - WIDER

Short Course on DiD, Statistical Horizons

Webinar, Electronic Health Economics Colloquium

Economics Seminar, University of Munich (Germany)

Webinar, DiD Online Reading Group, U Ottawa (Canada)

Economics Seminar, Ifo Munich (Germany)

Health Economics Seminar, U of Washington (CHOICE)

Health Economics Seminar, U of Rochester Medical Center

Economics Seminar, Insper (Brazil)

Econometrics Seminar, UC Berkeley

Economics Seminar, U Notre Dame

Econometrics Seminar, USC

Guest Lecture on DiD, U Toronto (Canada)

Conference, New York Camp Econometrics

Online Seminar (discussant), London Law & Finance Seminar Series

Econometrics Seminar, Harvard/MIT

Econometrics Seminar, U Toronto (Canada)

Economics Seminar, Microsoft

Economics Seminar, U Florida

Economics Seminar, U Delaware

Applied Micro Seminar, Emory

Econometrics Seminar, U Cambridge

Online Seminar (discussant), The Gary Chamberlain Online Seminar in Econometrics

Econometrics Seminar, Durham Business School (UK)