Insights
Guest essays on finance research, written by invited researchers.
Insights brings together two kinds of writing: short essays by researchers we invite to write about their own work in finance, and didactic or informative pieces — tutorials, walkthroughs, explainers — written by the NEFIN team itself. Each text is signed by its author. If you would like to contribute, write to nefin@usp.br.
When the Manager Changes Jobs, the Fund Moves Too
A 2003 identification idea, follow the managers who move, applied to 37,455 manager switches in the Brazilian fund industry. When a fund changes management firms, its portfolio changes address too.
14 min readCAPM in Python: Estimating Small-Cap Beta with NEFIN Data
How much market risk does a small-cap portfolio really carry? A classic CAPM exercise on real NEFIN data, worked out in a few lines of Python.
11 min read