Effects of Simultaneous Changes (Shifts) in Demand and Supply

• In real life, when demand rises (like during a festival), producers often supply more as well.
• So, both curves can shift at the same time, affecting price and quantity.

1) Explanation:

If demand and supply increase by the same amount, price stays the same, but quantity sold increases.

2) Diagram:

• Picture both curves (demand and supply) shifting right by an equal amount.
• The new intersection (equilibrium) is at a higher quantity but the same price.
  

3) Key Takeaway:

Quantity increases; price remains constant.

1) Explanation:

• If demand grows more than supply, buyers compete for goods.
• This pushes price up, and more goods are sold.

2) Diagram:

• The demand curve shifts more than the supply curve.
• New equilibrium shows higher price and higher quantity.
  

3) Key Takeaway:

Both price and quantity increase.

1) Explanation:

• If supply rises a lot but demand hardly changes, sellers reduce prices to sell more.
• Quantity sold rises, but price drops.

2) Diagram:

• Supply curve shifts more than demand.
• New intersection is at a lower price but higher quantity.
  

3) Key Takeaway:

Price falls; quantity increases.

Think about a new video game console:

• If lots of people want it (higher demand) and companies make more (higher supply), stores will sell more units.
• If everyone wants one but few are made (demand rise > supply rise), prices spike, and some miss out.
• If companies make too many (supply rise > demand rise), stores might discount them.