0.80; 5 is the answer in this question. 0.80 is the value of marginal propensity to consume MPC that would correctly fill in the blank of g, And the value of the multiplier that would correctly fill the blank of h is 5. Marginal propensity in economics is defined as to consume the MPC is a metric that quantifies induced consumption, the concept that the increase in personal consumer spending (consumption) occurs with an increase in disposable income (income after taxes and transfers).