Question
Explain why is an indifference curve (a) downward sloping and (b) convex.

Answer

  1. Indifference Curve Slopes Downwards: Because in order to consume More units of X good the consumer must give up some quantity of Y good, so that consumer remains on the same level of satisfaction at each point of Indifference Curve.
  2. Indifference Curve is convex to the origin: Because it is assumed that Marginal Rate of Substitution falls continuously as the consumer moves downwards along the curve. It is due to the Law of Diminishing Marginal Utility.

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