twoyear: twoyear

twoyearR Documentation

twoyear

Description

Wooldridge Source: T.J. Kane and C.E. Rouse (1995), Labor-Market Returns to Two- and Four-Year Colleges, American Economic Review 85, 600-614. With Professor Rouse’s kind assistance, I obtained the data from her web site at Princeton University. Data loads lazily.

Usage

data('twoyear')

Format

A data.frame with 6763 observations on 23 variables:

  • female: =1 if female

  • phsrank: percent high school rank; 100 = best

  • BA: =1 if Bachelor's degree

  • AA: =1 if Associate's degree

  • black: =1 if African-American

  • hispanic: =1 if Hispanic

  • id: ID Number

  • exper: total (actual) work experience

  • jc: total 2-year credits

  • univ: total 4-year credits

  • lwage: log hourly wage

  • stotal: total standardized test score

  • smcity: =1 if small city, 1972

  • medcity: =1 if med. city, 1972

  • submed: =1 if suburb med. city, 1972

  • lgcity: =1 if large city, 1972

  • sublg: =1 if suburb large city, 1972

  • vlgcity: =1 if very large city, 1972

  • subvlg: =1 if sub. very lge. city, 1972

  • ne: =1 if northeast

  • nc: =1 if north central

  • south: =1 if south

  • totcoll: jc + univ

Notes

As possible extensions, students can explore whether the returns to two-year or four-year colleges depend on race or gender. This is partly done in Problem 7.9 but where college is aggregated into one number. Also, should experience appear as a quadratic in the wage specification?

Used in Text: pages 140-143, 165, 261, 340

Source

https://www.cengage.com/cgi-wadsworth/course_products_wp.pl?fid=M20b&product_isbn_issn=9781111531041

Examples

 str(twoyear)

wooldridge documentation built on May 3, 2023, 5:06 p.m.