(I) The IS curve is Y=1600-100i, LM curve is defined as 0,5Y-50i=200. Assume that the multiplier of autonomous expenditures is 4. Now government spending increases by 100.     1) Find maximum potential increase of output (i.e. in absence of crowding-out effect).      2) Find actual increase of the output.     3) Find crowding-out effect.

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