2. Suppose that disposable income, consumption, and saving in some country are $200 billion, $150 billion, and $50 billion, respectively. Next, assume that disposable income increases by

$20 billion, consumption rises by $18 billion, and saving goes up by $2 billion. What is the economy’s MPC? Its MPS? What was the APC before the increase in disposable income? After the increase? LO30.1