R: Lalonde Dataset

lalonde {arm} | R Documentation

## Lalonde Dataset

### Description

Dataset used by Dehejia and Wahba (1999) to evaluate propensity score matching.

### Usage

    data(lalonde)

### Format

A data frame with 445 observations on the following 12 variables.

age

  age in years.

educ

  years of schooling.

black

  indicator variable for blacks.

hisp

  indicator variable for Hispanics.

married

  indicator variable for martial status.

nodegr

  indicator variable for high school diploma.

re74

  real earnings in 1974.

re75

  real earnings in 1975.

re78

  real earnings in 1978.

u74

  indicator variable for earnings in 1974 being zero.

u75

  indicator variable for earnings in 1975 being zero.

treat

  an indicator variable for treatment status.

### Details

Two demos are provided which use this dataset. The first, `DehejiaWahba`, replicates one of the models from Dehejia and Wahba (1999). The second demo, `AbadieImbens`, replicates the models produced by Abadie and Imbens http://scholar.harvard.edu/imbens/scholar_software/matching-estimators. Many of these models are found to produce good balance for the Lalonde data.

### Note

This documentation is adapted from `Matching` package.

### References

Dehejia, Rajeev and Sadek Wahba. 1999.“Causal Effects in Non-Experimental Studies: Re-Evaluating the Evaluation of Training Programs.” Journal of the American Statistical Association 94 (448): 1053-1062.

LaLonde, Robert. 1986. “Evaluating the Econometric Evaluations of Training Programs.” American Economic Review 76:604-620.

### See Also

`matching`, `GenMatch` `balance`

### Examples

    data(lalonde)

[Package arm version 1.9-3 Index]