Oil exporters typically do not consider below-ground assets when allocating their sovereign wealth fund portfolios, and ignore above-ground assets when extracting oil. We present a unified framework for considering both. Subsoil oil should alter a fund’s portfolio through additional leverage...

Using a long span of expenditure survey data and a new narrative measure of exogenous income tax changes for the United Kingdom, we show that households with mortgage debt exhibit large and persistent consumption responses to tax changes. Home-owners without a mortgage, in contrast, do not...