The data are from the Panel Study of Income Dynamics (PSID) longitudinal study, 1976 wave. They give the number of work hours of married women along with socio-economic variables and the number of children.
a data frame containing the following variables:
whrs: hours of work
kidslt6: number of children aged 5 and below years old in household
kidsge6: number of children between age of 6 and 18 in household
age: age (in years)
educ: number of years in school
hearn: hourly earnings
exp: years of previous labor market experience
W. Greene's website, accessed 17.12.2019 at <http://www.stern.nyu.edu/~wgreene/Text/Edition7/TableF5-1.csv>.
T. A. Mroz, 1987. The Sensitivity of an Empirical Model of Married Women's Hours of Work to Economic and Statistical Assumptions, Econometrica, 55(4), pp. 765-799