In: Economics
1) Decrease in production of tomatoes by 60% causes change in supply. Hence supply curve will shift towards left. Also price increases in this situation and quantity decreases in this situation.
Leading to change in market equilibrium change from E to E1 as shown in the picture given below.
2)As income decrease by 50% it will lead to change in demand by consumers , hence demand curve will shift towards left. Also increase in sellers by 20% means increase in supply,will lead to rightward shift of supply curve.
To note: here change in demand(50%) is more than change in supply(20%). Hence it is reflected by more gap in demand curve shift than supply curve shift.
Market equilibrium shift from E to to E1 as shown in the figure.
3) As government imposed price ceiling which made electricity generators protest, leading to poor quality of their service. It is important to note that there is a decrease in quality standard and not decrease in supply quantitatively. Also electricity being a inelastic good, its curve will be vertical straight line.
Hence there is no change in supply or demand thus market equibrium will remain the same.