4 TANG TRUING PHI CAN BANG
4.3.DAU TI.1 VA KHA NANG SINH LQ
Khi to xem xet mdc dO anh huong dm led nhuan den ye/u to dau to (Malinvaud [1980]), thi Ong thai troy nen phirc tap han bed vi no phai t6 hop cdc tdc Ong dm clang he s6 tang t6c nhu trong vi du trate va dOng
That nghiep 2 Lam phat
A
thai cua mac tien luong thtrc nhan (xem vi du Laussel[1982], Autume[1988], Muet va Sterdyniak[1988]). Dd hidu ro sit tac dOng cUa loi nhuan, ta se sir dung clang mo hinh track ma trong mO hinh nay cac nhan 16 san xua 1a cac nhan t6 pity, bang each gia thiet rang milt dau to hien nay phu thuOc vao sty chenh lech gicra tY le lqi nhuan hien co va tY suCit lqi felt'. Ty le lqi nhuan hien c6 la ket qua led nhuan thuan tuY thu duqc (tY le lqi nhuan tuong ang voi viec six dung c6 hieu qua hay khOng nang luc san xuSt) theo tY le sir dung nang luc san xuat. MOt tY le lqi nhuan thSp c6 thd se gay thiet hai den gia tri loi nhuan thu duoc (mac luong thtrc tra qua cao), hoac cau se khOng tuong ang (nh6 hon) vOi nang ltrc san xugt. Gia thiet rang cau to chit tinh theo &du ngtr6i la khOng d6i; do do khi dau tu rang bang khOng ta c6 nen kink to hang den trang thai can bang Walrasi.
Tien luong thuc te"
• M
4
That ngh ep 1
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That nghiep Keynes
k* Lugng tu ban theo dau ngeii k
Hinh 4.4. Dong thai ciia 10 nhuan va 4:16u to
kY ngan han, nang luc san xugt ma dugc an Binh theo Wong du trir to ban va loi nhuan thi chi gay anh hueng den cau theo haong dau to (ngtrqc lai, lqi nhuan va dau tu gay anh huong den nang lye san xugt tai