Hahn, William F.; Taha, Fawzi; Davis, Christopher G. - Agricultural and Applied Economics Association - AAEA - 2013
Economists often use aggregate time series data to estimate consumer demand functions. Some of the popular applied … demand systems have a PIGLOG form. In the most general PIGLOG cases the “average” demand for a good is a function of the … expenditures are invariably used. Since we are estimating these demand systems using the wrong expenditure terms, our estimates may …