Convidamos a todos para participar do seminário do Professor Luiz
 Renato (Departamento de Economia) que ocorrerá sexta (25/07) às 14h na
 sala 19. Seguem abaixo título e resumo.
 Titulo: Robust Estimation of Gravity Equations and the WTO Impact on Trade
 Inequality
 Abstract:
 This paper develops a quantile estimation approach for the gravity model
 that identifies
 the impact of policy on trade dispersion. Our approach accommodates
 positive as well as
 zero trade flows across pair of countries, endogenous formation of trade
 agreements and
 is robust with respect to heteroskedasticity. In international trade data,
 the estimator
 provides evidence that WTO membership has little impact on the mean, but
 it reduces
 the inter-quartile range by 17%. Therefore, WTO membership releases
 frictions such that
 low-value trade relationships increase and high-value ones decrease to
 lower the dispersion
 in the trade flow distribution. The data show that other types of
 agreements increase such
 a dispersion.