From The Annals Of Financial Illiteracy

by Zoë Pollock

Dan Ariely finds the field of financial advice lacking. It's mostly our own fault, but Ariely wishes advisors would ask better questions:

In one study, we asked people the same question that financial advisors ask: How much of your final salary will you need in retirement? The common answer was 75 percent. But when we asked how they came up with this figure, the most common refrain turned out to be that that’s what they thought they should answer. And when we probed further and asked where they got this advice, we found that most people heard this from the financial industry. …

In our study, we then took a different approach and instead asked people: How do you want to live in retirement? Where do you want to live? What activities you want to engage in? And similar questions geared to assess the quality of life that people expected in retirement. We then took these answers and itemized them, pricing out their retirement based on the things that people said they’d want to do and have in their retirement. Using these calculations, we found that these people (who told us that they will need 75% of their salary) would actually need 135 percent of their final income to live in the way that they want to in retirement