1.

Explain with the help of diagrams, the effect of the following changes on the demand of a commodity: (i) A fall in price of Substitute good. (ii) A fall in price of Complementary good.

Answer»

Solution :(i) A fall in price in Substitute good:

(a) Substitutegoods are the goodsthan can be used in place of another goods and give the same satisfication to a consumer.
(b) There would always exist a direct relationship between the price of substitute goodsand demandfor given commodity.
(C) Due to fall in price of substitute (SayCoffeefrom Rs 550 to Rs 500), the demandof tea shift leftward from DD to `D_(1)D_(1)` as SHOWN in adjacement FIGURE:
(ii) A fall in price of Complementary good

(a) Complementary goods are those which are useless in the absence of another good and which are demanded jointly.
(b) There wouldalways exist an inverse realtionship between price of complementary goods anddemand for given commodity.
(c) Due to fall in price of Complementary good (SAY Tea from Rs 550 to Rs 500),the demand of sugar shiftrightward from DD to `D_(1)D_(1)`asshown in given figure.


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