ճ , (Y) (r). IS. I = S. . , I = I(r). , S = S(Y). , IS: I(r) = S(Y).
г LM. L1 = L1(Y), L 2= L2(r). : L = L1+L2, L = L1(Y) + L2(r), L = L(Y,r). M LM: L(Y,r) = M.
IS LM () , , .
IS-LM , IS -, LM - .
35. . IS LM.( 34)
IS-LM , IS -, LM - . ( , , ) , IS-LM (.2.2).
( 1) (Y*). ³ (N*) ( 2) ( 3).
IS-LM . ճ- , , , . . : 1) . 2) . 3) . , .