International Trade What determines whether a country imports or exports a good?

The Meaning of Competition uA perfectly competitive market has the following characteristics: u There are many buyers and sellers in the market

Monopoly While a competitive firm is a price taker, a monopoly firm is a price maker

Imperfect Competition Imperfect competition refers to those market structures that fall between perfect competition and pure monopoly

Harcourt, Inc. items and derived items copyright © 2001 by Harcourt, Inc. The Four Types of Market Structure Monopoly Oligopoly Monopolistic Competition Perfect Competition

1.半波损的概念 2.双界面上反射光相位关系 3.全反射与隐失波

1.菲涅耳公式 2.反射率和透射率 3.Stocks倒逆关系

1.瑞利判据 2.光学仪器的分辨本领

1.夫琅和费衍射装置 2.夫琅和费单缝衍射花样 3.其他夫琅和费衍射花样

1.光波衍射引论 2.菲涅尔圆孔和圆屏衍射 3.波带片