PHN 2. Bi tp c nhn Trong cc ch ca Kinh t hc vi m ch no lm anh/ch cm thy thch th nht? Ti sao? ng dng thc t ca vn l g? -------Kinh t hc vi m l mn khoa hc nghin cu v cc hnh vi kinh t ca cc c nhn, tc ng ln nhau trong mt th trng nhm tha mn mt nhu cu ca mnh. tha mn c cc nhu cu y, con ngi cn c cc sn phm v dch v. Nhng cc ngun lc sn xut cc hng ha ny li c tnh khan him. V th, l thuyt Cung Cu, c bit l cc vn c bn sn xut ra ci g v bao nhiu, nh th no v cho ai l vn c nhiu ng dng thc t d thy nht, thu ht ti t nhng ngy u tip cn mn hc. V c bn, cc ngun lc trong x hi u khng phi l v hn, ngi ta khng th cung cp chng mt cch min ph m khng ri vo trng thi s lng ngun lc c yu cu vt qu s lng cung cp sn c. Khng ch lao ng, t ai, vn l khan him, m thi gian ngi ta sn xut v tiu dng cng khan him. Tnh khan him ny khng cho php con ngi c th sn xut mi hng ha, vi bt k s lng no m n mong mun. Vi s lng ngun lc c hn, khi x hi sn xut qu nhiu lng thc, n buc phi hy sinh cc sn phm khc. Tnh khan him ca ngun lc khin cho phn ln cc sn phm m chng ta thy cng mang tnh khan him. Ngi ta khng th c chng m khng phi hy sinh hay t b mt ci g khc. V th: La chn sn xut ci g, vi s lng bao nhiu v.v. c th tha mn tt nht nhu cu ca mnh chnh l bi ton kinh t m cho n nay, loi ngi vn phi ng u. iu lm nn cc hot ng kinh t a dng ca x hi. Th trng quyt nh bao nhiu sn phm s c sn xut thng qua mc gi m ti lng cu bng vi lng cung. Cu i vi mt loi hng ha cng cao (ng cu cng xa v pha phi) s dn n gi cng cao. Th trng cng cho chng ta bit hng ha c sn xut cho nhng ngi c th sn sng tr mt s tin, t nht, bng vi mc gi cn bng trn th trng. Qua , n cng cho chng ta bit nhng nh sn xut trn th trng l nhng ngi c th cung ti mc gi cn bng. Trn c s nu, vn trn cn gip chng ta gii thch: Mt hng ha s khng c sn xut nu cung v cu ca n khng t c s cn bng. Trong mt s trng hp, thm ch mc gi cao nht ngi mua c th tr, ngi bn vn cha th cung hng ha. Gi thp nht m ngi bn c th cung ng hng ho ra th trng phi cao hn gi cao nht m ngi mua ng tr. Vn dng nhng l lun trn, gip ta gii thch c nhiu vn thc tin. Chng hn nh vn : Mt hng sch chuyn ngnh xy dng rt t c bn ti Cn Th do s lng khch hng rt t (cu thp). Cc nh pht hnh sch cm thy khng c li khi t chc phn phi mt s lng nh mt hng ny Cn Th do chi ph pht hnh cao. Trong khi , ti thnh ph H Ch Minh, loi sch ny c bn kh ph bin do s lng khch hng ng hn nn cu cao v ngi bn c th thu c li nhun khi pht hnh loi sch ny. L thuyt Cung Cu l mt mng khng th thiu khi nghin cu v Kinh t hc vi m. Nhng hiu c l thuyt y, cn phi nm r vn Sn xut cho ai ci g nh th no vn dng vo hc tp v nghin cu sao cho c hiu qu nht.

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