Sergio Ocampo Díaz

Recent Research Papers

Beyond ranks: Inequality in the measurement of mobility  with Rory McGee

The life cycle dynamics of wealth mobility  [R&R JPubE]  with Richard Audoly, Rory McGee, Gonzalo Paz Pardo (Long Slides, Slides, Short Slides,🧵)

A Practitioner's Note on The Shapley-Owen-Shorrocks Decomposition

Book-value wealth taxation, capital income taxation, and innovation  [R&R AEJ-Macro]  with Fatih Guvenen, Gueorgui Kambourov, Burhan Kuruscu (Slides, Old Version,🧵)

GRID Colombia: Labor market trajectories and earnings dynamics [R&R Journal of Macro] with Brenda Samaniego de la Parra and Leonardo Fabio Morales

Extending the range of robust PCE inflation measures with Raphael Schoenle and Dominic Smith  (data file, slides, CEBRA video, Inflation in 3)

A task-based theory of occupations  (Slides, CHPC working paper, 🧵) 

Work in Progress

Fairness through markets with Paolo Piacquadio

On the mechanics of wealth inequality at the top with Fatih Guvenen and Serdar Ozkan (Slides)

Variable markups with heterogeneous demand and productivity with Juan Holguín and Sergio Salgado  (Slides)

Published Papers

The evolution of U.S. retail concentration   [AEJ-Macro, 2025]  with Dominic Smith (ProMarket,Open access, Slides, 🧵, 🧵)

Robust contracts in common agency  [RAND, 2024]  with Keler Marku and Jean Baptiste Tondji (Open access, 🧵)

Computing longitudinal moments for heterogeneous agent models  [Comp Econ, 2023] with Baxter Robinson (GitHub, Open access, 🧵)

The macroeconomic consequences of subsistence self-employment [JME, 2023] with Juan Herreño   (Slides, Open access, Draft, 2019, 🧵)

Use it or lose it: Efficiency and redistributional effects of wealth taxation [QJE, 2023] with Fatih Guvenen, Gueorgui Kambourov, Burhan Kuruscu and Daphne Chen  (Open access, Computational Appendix, 🧵,🧵)