Which of the following does not explain why is there an inverse (negative) relationship between price and quantity demanded? 0 When the price of an item increases, you buy more because it is more valuable. O Substitution effect ~ that is, a price change can affect the opportunity cost of purchasing some item and your Willingness to switch to (or from) another item. ( '3' ' Q Diminishing marginal utility -- as you consumel more as the result of a price decrease the additional satisfaction received from the additional units consumed will start to go down. 0 Income effect - that 1s a price change can affect the amount of " some item you can afford to purchase