Consider a hypothetical closed economy in which households spend $0.60 of each additional dollar they earn and save the remaining $0.40.

The marginal propensity to consume (MPC) for this economy is and the spending multiplier for this economy is

Suppose the government in this economy decides to increase government purchases by $400 billion. The increase in government purchases will lead to an increase in income, generating an initial change in consumption equal to _________   . This increases income yet again, causing a second change in consumption equal to _______   . The total change in demand resulting from the initial change in government spending is _______.