








What is the relationship between changes in interest group resources and the proposal and adoption of state policy? Using a dataset of proposed and enacted teacher policies across five legislative cycles in all 50 states and measures of interest group relative and absolute resource strength, I estimate a series of within-state fixed effects models that gain identification from changes in interest group resources and teacher policy over time. I find that legislatures propose more unfavorable and fewer favorable policies toward teachers' unions in states where teachers' union opposition interest groups are expending more election (but not lobbying) resources over time. Further, I find that more unfavorable and fewer favorable policies are adopted in states where teachers' union opposition groups are growing in election resource strength. Expanding on prior empirical work, this study suggests that interest group resources matter for policy change and highlights the importance of capturing interest group resource dynamics over time.
