Use the following data to work Problems 1 and 2. You are given the following information about the economy of the United Kingdom.
Disposable income Consumption expenditure
(Billions of pounds per year)
300 340
400 420
500 500
600 580
700 660
1. Calculate the marginal propensity to consume.
2. Calculate saving at each level of disposable income and calculate the marginal propensity to save.