| nswproject {camerondata} | R Documentation |
Training and earnings
Description
Data from the National Supported Work (NSW) demonstration project used by Lalonde (1986), and Dehejia and Wahba (1999, 2002). This sample has 185 observations in the treatment group and 2490 in the control group. The treatment sample consists of males who received training during 1976-1977. THe control group consists of male household heads under the age of 55 who are not retired, drawn from the PSID (Cameron and Trivedi, 2005).
Usage
nswproject
Format
A data frame with 2675 observations and 18 variables:
- treat
= 1 if individual is in treatment group, = 0 if in control group
- age
age in years
- educ
education in years
- black
= 1 if black
- hisp
= 1 if hispanic
- marr
= 1 if married
- re74
real annual earnings in 1974 (pre-treatment), in 1982 usd
- re75
real annual earnings in 1975 (pre-treatment), in 1982 usd
- re78
real annual earnings in 1978 (post-treatment), in 1982 usd
- u74
= 1 if unemployed in 1974
- u75
= 1 if unemployed in 1975
- agesq
age squared
- educsq
educ squared
- nodegree
= 1 if years of education < 12
- re74sq
re74 squared
- re75sq
re75 squared
- u74black
interaction term u74 x black
- u74hisp
interaction term u74 x hisp
Section in Text
25.8 Treatment Evaluation Example: The Effect of Training on Earnings, pp. 889-95
Source
http://cameron.econ.ucdavis.edu/mmabook/mmadata.html
References
Cameron, A. and Trivedi, P. (2005), "Microeconometrics: Methods and Applications," Cambridge University Press, New York.
Dehejia R. and Wahba S. (1999), "Causal Effects in Nonexperimental Studies: Reevaluating the Evaluation of Training Programs," JASA, 1053-1062.
Dehejia R. and Wahba S. (2002), "Propensity-score Matching Methods for Nonexperimental Causal Studies", ReStat, 151-161
Lalonde, R. (1986), "Evaluating the Econometric Evaluations of Training Programs with Experimental Data," AER, 604-620.
Examples
summary(nswproject)