Fill in the blanks to make the following statements correct.
a. Utility theory is based on the hypothesis that the _______ received from each additional unit of the good _______as total consumption of the good increases.
b. A utility-maximizing consumer will allocate expenditure such that the _______ per dollar spent on each product is _______ for all products.
c. An equation that represents a utility-maximizing pattern of consumption of two goods, A and B, is _______.
d. Marginal utility analysis tells us that a rise in the price of a good, ceteris paribus, leads each consumer to reduce the _______ of the good. This, in turn, predicts a _______ demand curve.