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Welcome! I am an Assistant Professor of Finance at the Indiana University Kelley School of Business. Prior to my current appointment, I received my PhD in economics from Princeton University.
My research is broadly focused on insurance markets, financial intermediation, firm dynamics, and urban economics.
Email: dtwennin@iu.edu
Working Papers
Beyond the Storm: Climate Risk and Insurers of Last Resort with Ankit Kalda, Vikas Soni, and Varun Sharma
Paper | SSRN | Latest Update: November, 2025
Priced Out: Rent Control, Wages, and Inequality with Isaac Hacamo, Geraldo Cerqueiro, and Pedro Raposo
Paper | SSRN | Latest Update: November, 2025
Banks in Space with Ezra Oberfield, Esteban Rossi-Hansberg, and Nicholas Trachter
Revise and resubmit, American Economic Review | Paper | SSRN | Latest Update: August, 2025
Works in Progress
Bundling in Insurance Markets with Eduard Boehm and Bretchen Hoskins
An exploration into the structure of insurance markets using data on the near-universe of insurance holdings in Chile.
Growing by Grafting with Ezra Obefield, Esteban Rossi-Hansberg, Nicholas Trachter, and Chen Yeh
A theory of assortative reallocation of heterogeneous establishments across firms supported by Census data on establishment ownership over the last half century.
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