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**Unformatted text preview: **i) Substitutes : as in case of tea and coffee or different brands of toothpaste, television sets etc. These goods are symbolized as B S which implies that B is a substitute of A. In this case, whenever the price of A rises the demand for A will fall but that of B will rise. Therefore the relation between P A and Q B is direct . Hence the sign of elasticity ratio will be positive. This can be illustrated as: P A &nbspQ A &nbspQ BS 10 &nbsp8 8 12 &nbsp6 &nbsp10...

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