00491nam a2200121Ia 450000500170000008000190001710000250003624500520006126000240011330000150013752001990015258300180035120260716043626.0  a09.05.06 P6191  aPiermartini, Roberta  aDemystifying modelling methods for trade policy  bWTOaGenevaCHc2005  a[6], 59 p.  aFocuses on two classes of quantitative tools-computable general equilibrium (CGE) models and gravity models.  Offers a non-technical explanation of CGE and gravity models to trade policy makers.  c11/3/05kJOYD