If both the demand and supply curve in a competitive market shifts to the left, one can predict the direction of change of output but no the price change. If the supply curve shifts to the left but th

If both the demand and supply curve in a competitive market shifts to the left, one can predict the direction of change of output but no the price change. If the supply curve shifts to the left but the demand curve shifts to the right, one cannot without additional kowledge, be certain about the direction of either the price or the quantity change. Do you agree with these statement? Explain.