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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Nidhi taparia Best Answer
Option (2) is right. Please not the difference between movement across the demand curve and shifts in demand curve. When quantity demanded changes due to changes in price, we move across the same demand curve. This is called expansion or contraction of demand. But when quantity demanded changes due to factors other than price (like in this case tastes and preferences due to weather), demand curve itself shifts or the consumer moves to a different demand curve. This is called increase or decrease in demand.