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Are trade blocs building or stumbling blocks? New evidence

Are trade blocs building or stumbling blocks? New evidence. Richard E. Baldwin Professor of International Economics Graduate Institute, Geneva ERWIT Appenzell 5 June 2008. Introduction. Joint with Elena Seghezza Are free trade agreements bad? Pure economics – hard to get upset.

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抛物线 ( 一 )

抛物线 ( 一 ). 欢迎指导. 平面内，与一个定点的距离和一条定直线的距离的比是常数 e 的点的轨迹，. (1) 当 0&lt;e&lt;1 是椭圆；. （ 2 ）当 e&gt;1 时是双曲线；. （ 3 ）那么当 e=1 时它是什么曲线？. y. y. y. y. F. K. 0. K. F. x. 0. 0. 0. x. x. x. F. K. K. F. 二、抛物线的标准方程 :. 图形. y 2 =2px (p ＞ 0). 标准方程. y 2 =-2px (p ＞ 0). x 2 =2py (p ＞ 0).

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300 views • 9 slides

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Are trade blocs building or stumbling blocks? New evidence

抛 物 线 ( 一 )

抛物线 ( 一 )