The primary reason for the decline in union membership in the United States since the 1960s is option D. An increase in worker productivity and efficiency in recent decades. The increase in worker resulted into the decline in union membership in the United States.
What is the reason for the decline in union membership?
The main reason for the decline in US union membership is as a result of the increased management opposition to union organization. This was motivated by related profit-related factors as a rise in the union wage premium, increased foreign competition, and government deregulation policies.
Therefore, the correct answer is as given above.
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