October 12, 2022
As promised in the “Building a Better CAPE Ratio” post last week, here’s an update on how I like to use the CAPE ratio calculations in the context of my Safe Withdrawal Rate Research. I have studied CAPE-based withdrawal rates in the past (see Part 11, Part 18, Part 24, Part 25) and what I like about this approach is that we get guidance in setting the initial and then also subsequent withdrawal rates based on economic fundamentals. That’s a lot more scientific than the unconditional, naive 4% Rule. In today’s post, I want to specifically address a few recurring questions I’ve been getting about the CAPE and safe withdrawal rates:
- Can a retiree factor in supplemental cash flows like Social Security, pensions, etc. when calculating a dynamic CAPE-based withdrawal rate, just like you’d do in the SWR simulation tool Google Sheet (see Part 28 for more details)? Likewise, is it possible to raise the CAPE-based withdrawal rate if the retiree is happy with (partially) depleting the portfolio? You bet! I will show you how to implement those adjustments in the CAPE calculations. Most importantly, I updated my SWR Simulation Google Sheet to do all the messy calculations for you!
- With the recent market downturn, how much can we raise our CAPE-based dynamic withdrawal rate when we take into account the slightly better-looking equity valuations? Absolutely! It looks like, the 4% Rule might work again! Depending on your personal circumstances you might even be able to push the withdrawal rate to way above 4%, closer to 5%!
- What are the pros and cons of using a 100% equity portfolio and setting the withdrawal rate equal to the CAPE yield?
Let’s take a look…Continue reading “The 4% Rule Works Again! An Update on Dynamic Withdrawal Rates based on the Shiller CAPE – SWR Series Part 54”