Gotta love these two sentences in that article: (when describing the model) Let ε<0 represent the elasticity of imports with respect to import prices... (when

Gotta love these two sentences in that article: (when describing the model) Let ε<0 represent the elasticity of imports with respect to import prices... (when implementing the model) The price elasticity of import demand, ε, was set at 4. 4 is less than 0, right? Right?!? This reads like a student who has made a mistake on an Econ 101 homework — where we would have given them an X and told them to try again. Except this failing student has now just set US trade policy.