A Productivity Commission Staff Working Paper, Armington Elasticities and Terms of Trade Effects in Global CGE Models by Xiao-guang Zhang was released on 8 February 2006, in conjunction with the staff working paper, The Armington Model. Armington elasticities specify the degrees of substitution...

We revisit the Armington model developed by Feenstra et al. (2018) that allows the elasticity of substitution between the domestic and foreign varieties to be different from that between alternative foreign varieties. We develop a novel two-stage gravity-based framework to estimate these two...