4min chapter

The Rational Reminder Podcast cover image

Factor Nuances, Dollar Cost Averaging, and Annuities in a Pandemic (EP.101)

The Rational Reminder Podcast

CHAPTER

Dollar Cost Averaging

Dollar cost averaging is systematically investing over a fixed period of time. The main idea with doing that is that you reduce the risk of investing at the worst possible time. It's basically regret avoidance. So I started by building a model to take a look at how rationally things have turned out. And it all started actually just answering a client question, like someone making this decision. Then I started to try and gather the data around it and then started to realize it was actually kind of neat. so I ended up evaluating dollar cost averaging versus lump sum investing over 10 year periods,. rolling 10 year periods. For most of the data series, I had 485, that's from 1970 until

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