The sum of the marginal propensity to consume (MPC) and the marginal propensity to save (MPS) always equals:

As the quantity of labor increases, value of marginal product for a perfectly competitive firm

A) decreases because the firm must lower its price to sell a larger quantity. B) decreases because the marginal product of labor decreases. C) decreases because marginal revenue decreases. D) is constant because marginal revenue is constant.

Suppose that the government goes into deficit in order to help local school districts build better schools. Does this burden future generations?