One way to adjust for choice of occupation is to compare earnings of men and women in the same occupation with the same or similar schooling. Ms. Goldin, Mr. Katz and Marianne Bertrand of the University of Chicago made that comparison in a 2010 study, which found that the primary factor behind long-term differences in earning was child-rearing. For M.B.A. students who graduated from the University of Chicago’s business school between 1990 and 2006, the authors found almost no gender gap in employment or wages just after graduation. But 10 years later, women had taken an average of one year off from work, while men had taken off only 1½ months.

[Paragraph missing.]

It makes sense. In a 2010 study, Ms. Goldin and Mr. Katz pointed out that women often receive a wage penalty for demanding a job that’s flexible enough for the woman to be the “on-call” parent. Men are more apt to receive a wage premium for being willing to be the “on-call” employee.

This is from David R. Henderson, “Claudia Goldin Deserves That Nobel Prize,” Wall Street Journal, October 9, 2023 (October 10 print edition.” I’m allowed to publish only 2 paragraphs until 30 days have passed. Thus the missing paragraph.

There was so much more I wanted to write, but I was given an 800-word limit. I actually thought that Claudia Goldin and Lawrence Katz deserved the Nobel.

Claudia wrote the article “Gender Gap” for David R. Henderson, ed., The Concise Encyclopedia of Economics.