Suppose an economy is initially in equilibrium at its potential level of output. As a result of an unexpected pandemic, the AD curve suddenly shifts to the left by a horizontal distance equal to $431 billion. How much will the output fall as a result of this shift in demand? (Calculate your answer in billions of CAD and write it without units. E.g., write 1 for $1 billion.) Your Answer: AnswerQuestion 44 (1.5 points) Suppose the marginal propensity to consume in an economy is 0.75. By how much and in what direction does the AD shift if the total income in the economy suddenly decreases by $10 billion? (For simplicity, you may assume that the AS curve is completely elastic.) O by $40 billion and to the left by $40 billion and to the right by $30 billion and to the right by $30 billion and to the left