The Past and Future of Housing Policy Innovation: The Case of US State Housing Trust Funds

State governments are increasingly expected to help fill the gap between the demand and supply of affordable housing within the US. Little systematic attention has been paid to state housing strategies over the years, despite a lengthening record of policy innovation. This paper asks what factors influence state adoption of housing trust funds (HTFs), and if these factors differ based on how the trust fund is financed and which state agency is responsible for administering it. Utilizing an event history analysis of pooled cross-sectional data, the paper finds that whether or not a state adopts a HTF, who administers it, and how they fund it, varies based on rates of new, single-family development, the size of the black population, prior state housing expenditures, and citizen ideology. The broader implications of these findings are considered for future housing policy innovations beyond states and HTFs.