Wealth inequality remains as wide, and as troubling, as it was a half-century ago. While scholars have offered various explanations, there is a contributor that has escaped serious scrutiny: state monopoly power. It is not just that there is a long history of states and municipalities using their monopoly power to protect dominant interests, from enacting Black Codes to shuttering Chinese laundries to barring women, immigrants, and minorities from certain professions. It is also that states cont