Based on a Constant Elasticity Substitution (CES) system, Anderson and van Wincoop (2003) used a Non-linear Least Squares (NLS)
model considering the endogeneity of trade costs to refine the theoretical foundations of the gravity model and provide evidence of
border effects in trade.
Based on a Constant Elasticity Substitution (CES) system, Anderson and van Wincoop (2003) used a Non-linear Least Squares (NLS)
model considering the endogeneity of trade costs to refine the theoretical foundations of the gravity model and provide evidence of
border effects in trade.