Project Labor Agreements: Union Monopoly in Public Works Construction

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Project labor agreements, or
PLAs, have been around since the 1930s. But they have become an increasingly common
means for unions to exercise, directly or indirectly, monopoly power over labor markets
since the U.S. Supreme Court gave them the green light in 1993 – in a ruling involving
another massive Boston project. Less than 15% of America’s private-sector hardhat
labor force currently belongs to a union, but PLAs ensure that many of the most lucrative
projects are effectively union-only.

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