I need help with these 2 assignment questios, the econometric software for the data is stata 1)The monopolistic competition model does hint to a selection effect within industries although it uses a...

I need help with these 2 assignment questios, the econometric software for the data is stata 1)The monopolistic competition model does hint to a selection effect within industries although it uses a representative firm, which implies that the model is silent about the microadjustments of trade.Give some examples of new stylised facts that call in question this silence and therefore also the lack of detail in models with a representative firm. In addition, use the dataset assignment3data.dta to support these stylised facts. 2)Use the dataset assignment3data.dta to estimate the importance of sunk costs of exporting in the industry