The strategy bypasses the National Labour Relations Board, which usually oversees the unionisation of workers.

ECONOMIST: Janitors band together in Houston

Some Republicans have called for the abolition of the Environmental Protection Agency and the National Labour Relations Board, which mediates employer-union relations.

ECONOMIST: America��s jobs crisis

In the United States, when unions win recognition ballots, they often end up returning to the National Labour Relations Board time and again to try to establish that the employer is acting in bad faith.

ECONOMIST: Labour relations