He specializes in theoretical and applied econometrics, with emphasis on non-/semi-parametrics, treatment effects and policy evaluation methodology, and causal inference. Matias's work appears in various journals in the social sciences and statistics, including Econometrica, Journal of the American Statistical Association and Journal of Politics. He was born and raised in Buenos Aires, Argentina, where he completed his undergraduate education at the Universidad de Buenos Aires and Masters in Economics at the Universidad Torcuato Di Tella. He received his M.A. in Statistics and his Ph.D. in Economics from UC-Berkeley, and joined the Michigan faculty immediately thereafter.