MovementChange in Price
Point: A
Price: $1000
Quantity: 800
⏺ Movement along the curve
ShiftChange in Supply
Curve: S
Shift amount: 0
⏩ Shift of the curve
🔹 Price Change → Movement
A change in the price of the good causes the green dot to move along the same supply curve. Quantity supplied changes, but the curve stays fixed.
🔸 Supply Change → Shift
A change in supply (e.g. technology, costs) causes the entire curve to shift left or right. The green dot moves with the curve.
Keyboard: ↑ / ↓ move · → / ← shift · R resets