Daniel Inviglio had to go and stir up the “are homes investments?” hornets nest again. In order to avoid a 10,000 word debate with Felix Salmon, I’ll try to keep this brief and relatively uncontroversial.

Inviglio makes the false claim that other than a bad credit score a homeowner has no economic reason to not walk away from their home once they are underwater on it. Homeowners have several economic reasons to not walk away from their homes even when they have negative equity:

1. Interest < Rent:  If interest payments are less than rent, then it costs you money to move out and start renting.

2. Moving = $: It costs money to move, or to put it in econospeak: there are often significant transaction costs. Renting a moving truck isn’t cheap, neither is the opportunity cost of your and your friends’ and family’s time and energy. You may not pay them, but helping you comes at a real economic cost to them, and people are not indifferent to those costs.

3. Recourse: If the mortgage is a recourse loan, the borrower faces the possibility of losing other assets if the bank comes after him.

As Zingales et al point out in a recent paper, in addition to these economic disincentives to foreclosure, people often perceive high moral costs to foreclosing. According to their survey, 80% of people think it is morally wrong to default. Even when the home is 50% underwater, only 17% said they would default if they could still afford the mortgage. Of course when they actually are in the position to default, people might not behave as they say they would in this survey, but they at least perceive it as a cost. There’s a big debate out there about whether or not it is immoral to default on your mortgage when you can afford to pay it, but that’s neither here nor there. Since many homeowners clearly perceive strategic default as immoral, it’s a cost to many homebuyers regardless of the actual morality of default.

Clearly, foreclosing on a home is not economically costless to a homeowner. For many it is not morally costless either. I kind of thought this was conventional wisdom by now.

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