PROBLEM SET $4$

$\backslash$table$[[DI,C,S,$I,$C+$I,$G,C+I+G,xN,$TE$],[Q,50,-50,50,150,50,200,50,250],[100,100,0,50,200,50,250,50,300],[200,150,50,50,250,50,300,50,350],[300,200,100,50,300,50,350,50,400],[400,250,150,50,350,50,400,50,450],[500,300,200,50,400,50,450,50,500]]$

DI $-$ disposable income, C $-$ Consumption, S $-$ Savings, I $-$ Investment, G $-$ Government Expenditure, $xN-$ Net exports, and TE $-$ Total Equilibrium. Please note that TE is$.$also. referred to as GDP or Income. So TE or Y $=$ C $+$ I $+$ G $+$ XN

Calculate $S_{,}{C}_{+}$I,$C_{{?}_{?}}+I+G,C_{{?}_{?}}+I+G+xN$ for each level of disposable income.

Calculate equilibrium using all sectors $($TE$).$

What would the new equilibrium be if "I" was increased to $100$ instead of $50?...$ What would this mean to the economy?