一、公共物品 1、概念: 具有非排他性和非竞争性或者二者具 其一的物品。 2、需具备的条件: a:非排他性:指当一个消费者消费某一商品时, 不排除其他人的消费; b:非竞争性:不管消费者对商品付不付费,都可 以消费该商品。 3、例: a:桥梁、公路等;b:独木桥c:电信的光纤

This is a Geodetic Control Test Field located at L Radial Surveying( Cartwheel): Madison County, Central Ohio. lial Surveys: one receiver at a fixed 2 Madison County High Altitude Test Range site, and measuring lines from this fixed

the country, educational facilities, medi owadays there is often a lack of ur d services and transportation systems are derstanding between parent and child still not fully developed. And the city also complain about their childrens \unreasonable\behavior, whil air pollution, great noise and poor housing children usually think their parents too

一、例题精解 【例题20.1】单相桥式可控整流电路如图20.1所示,已知R=20Q,要求U在0-60V 的范围内连续可调。(1)估算变压器副边电压值U2(考虑电源电压的10%波动); (2)求晶闸管控制角a的变化范围;(3)如果不用变压器,直接将整流电路的输入 端接在220V的交流电源上,要使U仍在060V范围内变化,问晶闸管的控制角a又将 怎样变化?

人教A版高中数学必修5第三章 不等式3.1 不等关系与不等式教案(2)

人教A版高中数学必修5第三章 不等式3.1 不等关系与不等式课件(2)

人教A版高中数学必修5第三章 不等式3.2 一元二次不等式及其解法习题(2)

人教A版高中数学必修5第三章 不等式3.2 一元二次不等式及其解法导学案(2)

Eco514 Game Theory Lecture 7: Interactive Epistemology(2) Marciano Siniscalchi October 7, 1999 Introduction This lecture presents the two main contributions of \interactive epistemology\ to the the- ory of normal-form games: a characterization of Nash equilibrium beliefs, and a full (i.e. behavioral)characterization of rationalizability

9-1: Aggregate Supply 9-2: Aggregate Demand 9-3: Equilibrium Output in the Short and the Medium Run 9-4: The Effects of a Monetary Expansion 9-5: A Decrease in the Budget Deficit 9-6: Changes in the Price of Oil 9-7: Conclusions