2 You are given the following information about the economy of Spendthrift Island:

Disposable income Saving (millions of euros per year) 0 –100 500 –50 1,000 0 1,500 50 2,000 100 2,500 150 3,000 200 Calculate Spendthrift Island’s a Marginal propensity to save. b Consumption expenditure at each level of disposable income. c Marginal propensity to consume.