1.Define MPC(marginal propensity to consume) , MPS(marginal propensity to save), APC(average propensity to consume) and APS(average propensity to save).

2. Define multiplier effects, based on Keynesian Fiscal policy.

3. When economy falls into a recession, what kind of fiscal policy is needed? Give a specific tool of fiscal policy.

4.Discuss the long run effects of "Crowding out" due to a short run expansionary fiscal Policy.

5.If MPC is larger, is the Multiplierbigger or smaller? why? explain based on the formula.

I would really appreciate if I could get longer responses, just so that I have a better understanding on these questions.