Economists’ standard model assumes that improvements in total factor productivity (TFP) raise the marginal product of labor for all workers evenly. This paper uses an earnings dynamics regression model to study whether, in practice, older workers benefit less from TFP growth than younger...

Tobin's average q has usually been well above 1, but fell below 1 during 1974-1984. Our model explains this pattern and reconciles it with unchanging aggregate investment. The stock market value in the numerator of q reflects ownership of physical capital and knowledge, but the denominator...

To study the role of home production in life-cycle behavior, this paper creates a theoretical model in which both spouses in a couple allocate their time between market and home work. It then derives a pair of regression equations for estimating the parameters of the model, and it carries out...

Using a life-cycle model in which women divide their time between home and market work, we establish a link between retirement wealth and the value of forgone home production. We use data from the Health and Retirement Study to estimate the model's parameters and adjust the growth rate of GDP to...

Over the last fifty years, home production output may have changed significantly due to dramatic increases in women's time allocation to market work. It is important to quantify this change: to the extent that increases in GDP derive from new time allocation patterns, failure to measure...

Economists have long thought of technological progress as a primary determinant of rising living standards over time. One might think of technological progress as increasing the “effectiveness” of labor, thereby raising the amount of output that each unit of labor can produce. The purpose of...