Question

Does demand curve always have negative slope .given three readons

Answer 1

1. The law of demand is based on the law of Diminishing Marginal Utility. According to this law, when a consumer buys more units of a commodity, the marginal utility of that commodity continues to decline. Therefore, the consumer will buy more units of that commodity only when its price falls.

2. Every commodity has certain consumers but when its price falls, new consumers start consuming it, as a result demand increases. On the contrary, with the increase in the price of the product, many consumers will either reduce or stop its consumption and the demand will be reduced. Thus, due to the price effect when consumers consume more or less of the commodity, the demand curve slopes downward.

3. When the price of a commodity falls, the real income of the consumer increases because he has to spend less in order to buy the same quantity. On the contrary, with the rise in the price of the commodity, the real income of the consumer falls.

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Answer 2

yes because there is inverse relationship between price and quantity demanded

so, because of this inverse relationship the demand curve is negative slope and downward from left to right

the equation of slope of demand curve =(-)price /quantity demanded

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