what will happen when firms exit a market? what will happen when firms exit a market? individual firm demand will shift downward. market supply shifts to the right, the equilibrium price in the market rises, and firms will experience a decrease in profit. market supply will shift to the left, equilibrium price in the market rises, and firms will experience an increase in profit. market demand will shift to the left, the equilibrium price in the market rises, and firms will experience an increase in profit. market supply will shift to the left, the equilibrium price in the market falls, and firms will experience a decrease in profit.