clear * infile using "d:\master\master1\class\e400\kmenta.dct" infile using "kmenta.dct" summarize describe list // OLS on the model regress q d p regress q f a p // demand ivreg q d (p = d f a),first estimates store demand_2sls // supply ivreg q f a (p = d f a),first estimates store supply_2sls estimates table demand_2sls supply_2sls * Alternatives reg3 (q p d) (q p f a), 2sls endog(p) reg3 (q p d) (q p f a), 3sls endog(p) reg3 (q p d) (q p f a), ireg3 endog(p)