The relationship between consumption and income is the

Nick can purchase each milkshake for $2. For the first milkshake purchased Nick is willing to pay $4, for the second milkshake $3, for the third milkshake $2 and for the fourth milkshake $1

What is the value of Nick's consumer surplus for the milkshakes he buys? A) $2 B) $9 C) $3 D) $10

Block pricing

A) is a form of nonlinear price discrimination. B) is pricing where one price is charged for the first block of units purchased, and different prices for subsequent blocks. C) can be either use increasing or decreasing prices for blocks purchased. D) All of the above.