# Episode 404: The Finance Paper that Changed Everything

Page: https://stenobird.com/podcast/the-rational-reminder-podcast-743537/episode-404-the-finance-paper-that-changed-everything
Text version: https://stenobird.com/podcast/the-rational-reminder-podcast-743537/episode-404-the-finance-paper-that-changed-everything.md
Podcast: [The Rational Reminder Podcast](https://stenobird.com/podcast/the-rational-reminder-podcast-743537)
Published: 2026-04-09T09:30:00+00:00
Episode link: https://rationalreminder.libsyn.com/episode-404-the-finance-paper-that-changed-everything
Audio file: https://dts.podtrac.com/redirect.mp3/traffic.libsyn.com/secure/rationalreminder/RR_-_EP.404_-_AUDIO_V1.mp3?dest-id=763774
Processing state: not_requested
JSON: https://stenobird.com/v1/public/podcasts/the-rational-reminder-podcast-743537/episodes/episode-404-the-finance-paper-that-changed-everything
Duration seconds: 3800

## Resource

What if the way we think about investing—and expected returns—was fundamentally incomplete? In this episode, Ben Felix and Dan Bortolotti take a deep dive into one of the most influential papers in financial economics: Fama and French (1993). With nearly 15,000 citations, this research reshaped how we understand asset pricing by showing that market beta alone isn't enough to explain returns. Instead, multiple factors—specifically size and value—play a critical role. Ben and Dan unpack how this paper challenged the dominance of CAPM, introduced the now-famous Three-Factor Model, and laid the foundation for decades of empirical asset pricing research. They explore how factor investing evolved, why anomalies may not be anomalies at all, and what this means for evaluating portfolios and active managers today. The conversation also connects theory to practice—highlighting how modern fund providers implement factor strategies and what it means for investors trying to improve expected returns without abandoning diversification. Key Points From This Episode: (0:00:00) Introduction to the episode and why this is a long-awaited deep dive into factor investing. (0:01:12) Overview of Fama and French (1993) and its massive impact on finance and portfolio management. (0:03:55) Origins of factor investing and how it connects to index investing and academic research. (0:04:46) Core premise: multiple factors drive expected returns and asset prices. (0:06:08) He explains why different assets can have different expected returns, and why that matters for investors. (0:07:24) Ben introduces the CAPM as the dominant model that linked expected return to market beta. (0:08:53) Dan reflects on how revolutionary CAPM and portfolio theory were when they were first introduced. (0:10:51) Ben descr…

## Actions

- request_transcript: `POST https://stenobird.com/v1/public/podcasts/the-rational-reminder-podcast-743537/episodes/episode-404-the-finance-paper-that-changed-everything/transcription-requests` — Idempotently request low-priority transcript generation for this episode.
- read_markdown: `GET https://stenobird.com/podcast/the-rational-reminder-podcast-743537/episode-404-the-finance-paper-that-changed-everything.md` — Read the agent-friendly Markdown representation of this episode resource.

A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed.

## Transcript

Full transcripts are not published on public pages unless there is a clear rights basis.