What is your short-run mpc

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Suppose that permanent income is find outd as the average of income over the past five years; that is Yp=(Y1+Y2+Y3+Y4+Y5)/5. Suppose further that consumption is given by C=0.9YP. 

a) If you have earned $20,000 per year for the past 10 years, what is your permanent income? 
b) Suppose that next year you earn $30,000. What is your new Yp? 
c) What is your consumption this year and next year? 
d) What is your short-run MPC? And long-run MPC? 

Reference no: EM13668875

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