The correct option is:
MPS = 0.5; APC = 0.75
Calculation:
At the income level of Y=200 (where consumption C=150 and previous income Y0=100, previous consumption C0=100):
- Average Propensity to Consume (APC):
APC=YC=200150=0.75
- Marginal Propensity to Save (MPS):
ΔY=200−100=100
ΔC=150−100=50
MPC=ΔYΔC=10050=0.5
MPS=1−MPC=1−0.5=0.5