ANN ARBOR, Mich.—Having a husband creates an extra seven hours a week of housework for women, according to a University of Michigan study of a nationally representative sample of U.S. families. For men, the picture is very different: A wife saves men from about an hour of housework a week. The findings are part of a detailed study of housework trends, based on 2005 time-diary data from the federally-funded Panel Study of Income Dynamics, conducted since 1968 at the U-M Institute for Social Research (ISR).

Maybe I’m supposed to react, “Get up from your nap and work!” But my actual reaction is: “Why did we need a federally funded study … ?”