經(jīng)濟(jì)學(xué)均衡價格英語講解

1、school of mathematics and statisticsl mathematics and information science（信息科學(xué)）l statistics （統(tǒng)計學(xué)）lmathetistics and applied mathematics（應(yīng)用數(shù)學(xué)） financial speciality（金融方向） normal speciality （師范方向）three majorsmicroeconomics微觀經(jīng)濟(jì)學(xué)微觀經(jīng)濟(jì)學(xué)均衡價格how price are determinted in the markets?mwhy the price of apple is

2、two yuan a kilo, rather than five cents or ten yuan？ two yuan/kilodemand function（需求函數(shù)需求函數(shù))& supply function（供給函數(shù)供給函數(shù)）According to the theory of western economists , when all other things(except price) remain constant ,the quantity of demand and supply have a functional relationship with the pri

3、ce of commiodity(商品)Qs quantity supplyQd quantity demandp price（參數(shù)）functional relationship(函數(shù)關(guān)系)mdemand function curvemQd=f(p)=-pmsupply function curve mQs=f(p)=-+pPQPQthe demand curve slops downloads from left to right,indicating that the quantity demand increase as the price falls. the higher the

4、price is, the lower will be the quantity demand.the suply curve indicating that the higher the price, the greater will be the quantity supplyEQUILIBRIUM PRICE (EQUILIBRIUM PRICE (均衡價格均衡價格) )mequlibibrium price arise when all the goods in the market will be cleared at that price mwhen we put the two curves in the same coordinate system(坐標(biāo)系),we will get the equlibriumprice and equlibrium quantity, they are prensented by the intersection point.mprice ceilingmif the price is lower than the equlibrium, there will be a shortage ；because the quantity demand exceeds the quantity suppliedmpric