In the diagram, the line RS represents the various combinations of goods X and Y that a consumer can buy using her current income. Her initial equilibrium is at M. What might account for a later shift in her equilibrium position to N?
- Aa change in her tastes
- Ban increase in the price of X and a fall in the price of Y
- Can increase in the price of X and a smaller percentage increase in the price of Y
- Dequal percentage increases in her income and in both prices