The Cost of Raising a Child, Revisited

Last week my post was about a new article I have with Scott Winship on the “cost of thriving” today versus 1985. That paper has gotten quite a bit of coverage, including in the Wall Street Journal, which is great but also means you are going to get some pushback. Much of it comes in the form of “it just doesn’t feel like the numbers are right” (see Alex Tabarrok on this point), and that was the conclusion to the WSJ piece too.

Here’s a response of that nature from Mish Talk: “There’s no way a single person is better off today, especially a single parent with two kids based on child tax credits that will not come close to meeting daycare needs.”

He mentions daycare costs, but never comes back to it in the post (it’s mostly about housing costs). Daycare costs are undoubtedly an important cost for families with young children (though since Cass’ COTI is about married couples with one earner, they may not be as relevant). And in the CPI-U, daycare and preschool costs only getting a weight of 0.5%. Surely that’s not reality for the families that actually do pay daycare costs! If only there was an index that applied to the costs of raising children.

In fact, there already is. Since 1960, the USDA has been keeping track of the cost of raising a child. Daycare costs are definitely given much more weight: 16% of the expenditures on children got to child care and education. And much of that USDA index (recently updated by Brookings) looks similar to what COTI includes: housing, food, transportation, health care, education, but also clothing and daycare. I wrote about it in a post last year and compared that cost to various measures of income (including single-earner families and median weekly earnings). But what if we compared it to Oren Cass’ preferred measure of income, males 25 and older working full-time? Here’s the chart.

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Self-Conception, Relative Prices, & Confabulation

We all like to think that we are individuals. We like to think that we grow and that our tastes develop and mature. We begin to appreciate different things in life, and among other behaviors, our spending habits change.

But what would you say if I told you that your maturing tastes didn’t cause your maturing consumption patterns? Indeed, what if it’s the other way around? Maybe, you’re just a bumbling ball bearing bouncing about and pinging off of various stimuli in a very predictable fashion. What if the prices that you face changed over the course of the past two decades, adjusting your optimal bundle of consumption, and then you contrived reasons for your new behavior in an elegant post-hoc fashion.

Have you *really* taken a liking to whole wheat bread and pasta over the past decade because your tastes have developed? Or maybe it’s because you found that scrumptious New York Times recipe that turned you away from potatoes and toward rice. Whether it’s a personal experience, a personal influence, or a personal development, we like to think about ourselves as complex organisms with a narrative that makes sense of the way in which we interact with the world.

On the other hand, we have price theory. Price theory still accepts that you are special and that you have preferences. Then, it asserts that your preferences remain fixed and that your changes in behavior are merely responses to changing costs and benefits that you perceive in the world. Maybe you’re not any more inclined to eat healthily than you were previously, but the price ratio of whole wheat bread to white bread is 10% less than it use to be. Maybe your east-Asian inspired recipe didn’t cause you to spurn potatoes, but instead the price ratio of rice to potatoes fell by 20%.   

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