4 points 19. A technological breakthrough in using photons for computers will increase the productivity of those working with computers a hundredfold. Holding other things constant, you would expect this breakthrough to shift the A) marginal product of labor curve up and to the right, raising the quantity of labor demanded at any given real wage. B) marginal product of labor curve down and to the left, reducing the quantity of labor demanded at any given real wage. C) labor supply curve up, reducing the quantity of labor demanded at any given real wage. D) labor supply curve down, raising the quantity of labor demanded at any given real wage