Overview
A. Platania is affiliated with the Statistical Laboratory, University of Cambridge. Co-author of the 2006 working paper resolving the equity premium puzzle via Bayesian parameter uncertainty about dividend growth.
Key Contributions / Features
- Jobert, Platania, and Rogers (2006): co-developed the doubly Bayesian framework in which a CRRA agent updates a Gamma-Gaussian prior over dividend-growth parameters each period while an econometrician simultaneously infers (β, R) and prior hyperparameters via particle filter.
- The paper's empirical calibration using Mehra-Prescott (1889–1978) data recovers R IQR [1.62, 1.71], resolving the puzzle without habit formation, recursive utility, or rare-disaster assumptions.
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