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The Corporate-Tax Conundrum

BERKELEY – The United States now has the highest statutory corporate-income tax rate among developed countries. Even after various deductions, credits, and other tax breaks, the effective marginal rate – the rate that corporations pay on new US investments – remains one of the highest in the world.

In a world of mobile capital, corporate-tax rates matter, and business decisions about how and where to invest are increasingly sensitive to national differences. America’s relatively high rate encourages US companies to locate their investment, production, and employment in foreign countries, and discourages foreign companies from locating in the US, which means slower growth, fewer jobs, smaller productivity gains, and lower real wages.