Before revision:  We also show a previously assumed impractical task of estimating a semiparametric median ordered-response model is also possible by using a novel constrained mixed integer optimization technique. We use GSS data to show the famous Easterlin Paradox from the happiness literature holds for the US independent of any parametric assumption.
After revision:  We also show a previously assumed impractical task of estimating a semiparametric median ordered-response model is also possible by using a novel constrained mixed integer optimization procedure for implementation. To illustrate, we use General Social Survey data to show the famous Easterlin Paradox from the happiness literature holds for the US independent of any parametric assumption.