Chapter 6, Problem 7P

To determine

The marginal valuation of the good, establish the consumer surplus and derive the demand curve.

Concept Introduction:

Consumer Surplus – The excess of consumers’ willingness to pay over what they actually pay (the ability to pay) for a good or service relative to the market price is the economic measure of consumer benefit known as the consumer surplus.

Law of demand – The law states that as the price of a commodity falls its quantity demanded increases and vice versa, assuming all other variables to be constant.

Linear Demand Equation – It expresses the quantity demanded as a function of price in the form, Qd= b + mp where b is the intercept and the slope m is constant. In other words, change in Qd with a one unit change in price is constant for a linear demand function.

Law of Diminishing Marginal Utility – The law states that we consume more and more of a commodity, keeping the consumption of all other variables constant, the utility derived from the consumption of every additional unit diminishes. The marginal utility thus diminishes.