calculator more school require students to buy and use calculator improved productivity shortens the time it takes to make calculators in this case what effect on demand.
Requiring Calculators would Shift demand to the right putting an upward pressure on prices and the quantity sold. Improved technology would Shift the supply curve to the right Putting a downward pressure on prices and an increase in quantity. The quantity sold will unambiguously rise the impact on price is ambiguous as the supply effect and demand effect are moving in opposite directions.
