Refinancing cross-subsidies in the mortgage market
研究了抵押贷款市场中不活跃家庭对活跃家庭的隐性交叉补贴，发现补贴从较贫穷家庭和地区流向较富裕家庭和地区，加剧了财富不平等。
In household finance markets, inactive households can implicitly cross-subsidize active households who promptly respond to financial incentives. We assess the magnitude and distribution of cross-subsidies in the mortgage market. To do so, we build a structural model of household mortgage refinancing and estimate it on rich administrative data covering the stock of outstanding mortgages in the UK. We estimate sizeable cross-subsidies that flow from relatively poorer households and those located in less-wealthy areas towards richer households and those located in wealthier areas. Our work highlights how the design of household finance markets can contribute to wealth inequality.