As housing affordability becomes a key political issue, the one rare area of apparent consensus is that large-scale institutional investors are to blame. For instance, Tim Walz highlighted this issue in the VP debate:On housing, we could talk a little bit about Wall Street speculators buying up housing and making them less affordable.This has led to proposed legislation targeting these investors, based on the idea they exercise market power and are bidding up house prices and rents. In some hous...