In an economy, the marginal propensity to consume (MPCMPCMPC) is 0.8. All other things being equal, which one of the following statements is correct?
If injections into the circular flow of income rise by £15 billion, national income will rise by £18.75 billion.
When the economy's national income equals £250 billion, total consumption in the economy must equal £200 billion.
A £60 billion increase in national income will lead to a £48 billion increase in consumption.
If injections into the circular flow of income rise by £16 billion, national income will rise by £20 billion.