A general equilibrium modeling approach is used to estimate the effects within Thailand of unilateral and global trade liberalization, including effects on poverty incidence. It is concluded that across the board trade liberalization is poverty-reducing within Thailand, whether other countries participate in the liberalization or not. This poverty reduction occurs among both farm and non-farm households and this qualitative outcome is not dependent on the particular poverty line used in the analysis. Liberalization in agricultural products alone raises poverty incidence among farm households, while reducing it slightly among non-farm households.