Can tax breaks raise fertility, or does marriage matter more?
Core argument: The authors argue that addressing falling fertility carries an impact measured in discounted terms of quadrillions of dollars, though they remain uncertain about which policies would raise US birth rates.
Moravec’s Paradox: programming computers to perform tasks that most humans consider very difficult (e.g., advanced math) is much easier than programming them to carry out tasks that most humans find trivial (e.g., making a bed). Unfortunately, the problems we will face due to the falling population, such as the need for old-age care, require skills like making a bed and not doing advanced math. What can the US do to address the fertility crisis? This is the one-quadrillion-dollar question (yes, tackling fertility has an impact measured in discounted terms of quadrillions of dollars, not just small change like a miserly trillion dollars here or there). We remain uncertain. We know, for example, that offering tax breaks for fertility doesn’t seem to make much difference. Instead, marrying more people (and doing so earlier) does appear to be significant. The US should restructure its entire economic policy toward a family-oriented approach that facilitates marriage. Highlighting the main components of such a policy would merit an article in itself. However, it encompasses housing affordability, reforming the educational system, and enhancing the labor and social skills of many young men.

