ECON 1050 Chapter 9: Economics-1 (1) (dragged) 3
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The effect of a change in income on the quantity of good consumed is called the income effect. The figure alongside illustrates the effect of a decrease in lisa"s income. Initially, lisa consumes at point j in part (a) and at point b on demand curve dd in part (b). Lisa"s income decreases and her budget line shifts leftward in part (a) Her new best affordable point is k in part (a) Her demand for movies decreases, shown by a leftward shift of her demand curve for movies in part (b) For a normal good, a fall in price always increases the quantity consumed. We can provide this assertion by dividing the price effect in two parts: substitution effect. Initially, lisa has an income of , the price of a movie is , and she consumes at point c. The price of a movie falls from to and her budget line rotates outward.