Originally Posted: October 27, 2004
The major work stoppages series, which dates back to 1947, covers both worker-initiated strikes and employer-initiated lockouts involving 1,000 or more workers and lasting for at least one shift.
1 The total of 330 work stoppages in effect is reached by starting with the 329 major work stoppages that began during the 1993-2003 period and adding 1 major work stoppage that was carried over from 1992 into 1993.
2 Industry classifications used in the chart are based on the North American Industry Classification System (NAICS). For more information, see North American Industry Classification System: United States, 2002 (Office of Management and Budget, 2002); or visit the BLS NAICS page at http://www.bls.gov/bls/naics.htm.
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Number of work stoppages