Each year on the holiday that bears his name, Martin Luther King Jr. is remembered for his immense contributions to the struggle for racial equality. What is less often remembered but equally important is that King saw the fight for racial equality as deeply intertwined with economic justice.

To address inequality – and out of growing concern for how automation might displace workers – King became an early advocate for universal basic income. Under universal basic income, the government provides direct cash payments to all citizens to help them afford life’s expenses.

In recent years, more than a dozen U.S. cities have run universal basic income programs, often smaller or pilot programs that have offered guaranteed basic incomes to select groups of needy residents. As political scientists, we have followed these experiments closely.

One of us recently co-authored a study which found that universal basic income is generally popular. In two out of three surveys analyzed, majorities of white Americans supported a universal basic income proposal. Support is particularly high among........

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