In a strike, what does the union have to lose? What does management lose?

The most important loss to the striking workers is their wages. The loss of this income can devastate a family whose principal source of income is a union worker's pay. Management loses potential profits and suffers proportionately more the higher its fixed costs. Both interests lose as the product is removed from the market and once-loyal consumers seek substitutes. These customers may choose not to come back once the strike ends.