Question 19 3 pts What will an improvement in production technology, lowering marginal and average costs at all levels of production, do to the long-run market supply curve in a perfectly competitive market? O It will shift the perfectly-elastic long-run market supply curve down, producing a lower equilibrium market price. It will make the long-run market supply curve more elastic. It will shift the long-run perfectly elastic market supply curve up, producing a higher equilibrium price. O It will have no effect on the long-run market supply curve. Previous Next Not saved Submit