Public radio in the United States receives both direct and indirect government funding. Direct subsidies come in the form of lump-sum and matching grants, while indirect subsidies proceed from tax revenues forgone on tax-deductible private donations. Each of these sources of government money affects charitable giving to public radio. This article estimates both of these effects, using data on 91 public radio stations in the United States during 1995. Data analysis shows that public funding to stations has a positive impact on private giving, but this impact rapidly decreases as the level of government subsidies increases. The analysis also indicates that increases in state tax rates correspond with significantly higher donation levels. This article explores the implications of these and other findings for policy makers, public administrators, and nonprofit managers.