Food Expenditures at Home and Away from Home in the United States--A Switching Regression Analysis

Abstract
The results of this study showed that the decision to eat away from home was positively affected by income while the amount spent away from home was only affected by income, again positively, at higher levels of household income. Food expenditures at home were similarly affected by income only at higher levels of household income provided the household also ate away from home. If the household did not eat away from home, food expenditures at home were positively affected by income at all levels, the effect decreasing in magnitude with the level of income.