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)

[Package camerondata version 1.0.0 Index]