A key reason for the existence of cities are the externalities created when people cluster together in close proximity. During Covid, such interactions came with health risks and people found other ways to interact. We document how cities changed during Covid and consider how the persistence of...

What explains record U.S. house price growth since late 2019? We show that the shift to remote work explains over one half of the 23.8 percent national house price increase over this period. Using variation in remote work exposure across U.S. metropolitan areas we estimate that an additional...

To understand a price boom, it is helpful to take account of: (1) observable indicators of changes in ex ante risk tolerance, (2) what information exists and when, and (3) the incentives lenders face. This paper takes such an approach to the Florida land boom of the mid-1920s, the U.S.' first...

Using individual-level data on homeowner debt and defaults from 1997 to 2008, we show that borrowing against the increase in home equity by existing homeowners is responsible for a significant fraction of both the sharp rise in U.S. household leverage from 2002 to 2006 and the increase in...

Heating, cooling, and powering the residential housing stock accounts for about one-fifth of total annual greenhouse gas emissions in the US. Home size is a key determinant of energy intensity. The average newly built single-family home is 50% larger than in the 1950s. Using distinct...