Goldin and Katz looked for the link between birth control and women’s labor force participation by examining the difference between states that acted early to make birth control legal and states that waited until later.

Which states do you think had the biggest jump in women joining the labor force: states that legalized birth control earlier or those that legalized it later? (Note: Goldin and Katz provide evidence for the correct answer in their paper.)  L 0 1