The Effects of School Calendar Type on Maternal Employment across Racial Groups: A Story of Child Care Availability
研究发现，采用全年制校历的学区会降低学龄儿童母亲的就业率，且影响程度因种族而异：白人为主的学区负面影响更大，可能因为白人较少依赖亲属照顾孩子。
This paper presents evidence that school districts' use of an alternative academic calendar, the year-round school calendar, results in a reduction in maternal employment for women with school-aged children that varies in magnitude across racial groups. Negative employment effects are larger in districts with a particularly high proportion white and smaller in districts with a particularly high proportion of minorities. The larger effects in primarily white school districts is not likely to be explained by income differences, yet could potentially be explained by the lower reliance on relatives for child care among whites than minorities.