We estimate the Armington elasticity for the 28 industrial sectors of the Brazilian input-output table, for the period 1986-2002. The methodology we use takes into account the stochastic properties of the data series, and the effects of the Brazilian foreign trade liberalization that occurred in 1990. We obtain statistically significant estimates of the elasticities for 24 sectors, and their estimated values are in the interval 0.2 to 3.6, with a weighted average of 0.9. For tree sectors the estimated elasticity is not significantly different from zero, and for one sector we find a significant elasticity, but it has the wrong sign.
