Wooldridge Source: Data from the National Highway Traffic Safety Administration: “A Digest of State Alcohol-Highway Safety Related Legislation,” U.S. Department of Transportation, NHTSA. I used the third (1985), eighth (1990), and 13th (1995) editions. Data loads lazily.

data('admnrev')

Format

A data.frame with 153 observations on 5 variables:

  • state: state postal code

  • year: 85, 90, or 95

  • admnrev: =1 if admin. revoc. law

  • daysfrst: days suspended, first offense

  • daysscnd: days suspended, second offense

Notes

This is not so much a data set as a summary of so-called “administrative per se” laws atthe state level, for three different years. It could be supplemented with drunk-driving fatalities for a nice econometric analysis. In addition, the data for 2000 or later years can be added, forming the basis for a term project. Many other explanatory variables could be included. Unemployment rates, state-level tax rates on alcohol, and membership in MADD are just a few possibilities.

Used in Text: not used

Examples

 str(admnrev)
#> 'data.frame':	153 obs. of  5 variables:
#>  $ state   : chr  "AL" "AL" "AL" "AK" ...
#>  $ year    : int  85 90 95 85 90 95 85 90 95 85 ...
#>  $ admnrev : int  0 0 0 1 1 1 0 1 1 0 ...
#>  $ daysfrst: int  0 0 0 30 30 30 0 30 30 0 ...
#>  $ daysscnd: int  0 0 0 365 365 365 0 90 90 0 ...
#>  - attr(*, "time.stamp")= chr "25 Jun 2011 23:03"