Time to Eat: Household Production under Increasing Income Inequality
利用1985和2003年美国时间日记与支出数据，研究收入和时间价格如何影响吃饭的时间与商品投入，发现收入越高投入越多，时间价格越高则时间投入越少，且商品强度增加、时间投入下降，尤其在低收入群体中更明显。
Abstract Using time diaries and expenditure data for the United States for 1985 and 2003, I examine how income and time prices affect time and goods inputs into eating. Both inputs increase with income, and higher time prices reduce time inputs. Between 1985 and 2003 the goods intensity of eating increased, especially lower in the income distribution, and average time inputs dropped, particularly time spent shopping, preparing, and cleaning up after meals. The results are consistent with relatively difficult goods‐time substitution in eating that becomes more difficult as household production expands.