Learning Contents: ·             Reasons for the downward slope of the demand curve.   Why the slope of the demand curve is downward? The law of demand states that there is an inverse relationship between price and the demand for a commodity. When the price of commodity increases, its demand decreases, and when the price of a commodity falls, its demand increases. The following points will explain the reasons for the downward slope of a demand curve: 1. Law of diminishing marginal utility: The law of diminishing marginal utility states that as more and more units of a good are consumed, the marginal utility (satisfaction) derives from the consumption of every additional unit of a good go on diminishing and therefore, the consumer would be willing to pay less price and the demand will fall. T he following points would clearly explain how the utility of a good is related to the price and demand. A consumer receive