t use Safari browser because it might prevent you from seeing graphs and other figures $($use Google Chrome or Firefox$).$ You should e as $10$ p$.$m$.$ on Friday, July $19$ to have full $60$ minutes on the exam.

Question $29$

In the simple Keynesian model with an MPC equal to $0\mathrm{.}80,$ a $$50$ billion increase in investment spending leads to a maximum:

$$50$ billion increase in equilibrium income.

$$80$ billion increase in equilibrium income

$$250$ billion increase in equilibrium income.

$$400$ billion increase in equilibrium income