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The Boston Globe

Politics

GOP faith unshaken in supply-side tax policies

WASHINGTON — Mitt Romney has added moderate-sounding ingredients recently to his campaign promise to cut personal tax rates by 20 percent, but the math still hinges to a significant degree on an assumption that has inspired conservative Republicans for decades.

The idea: Reduce taxes, especially for the wealthy and corporations, and America’s entrepreneurial fortunes will soar. The economy, unleashed from the drag of excess taxes, will grow. Government deficits will shrink.

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