Lechner's Standard Error for the ATT

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Description

Calculates the Standard Error for the Average Treatment Effect with Lechner's method.

Usage

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lechner_se(obj, Y)

Arguments

obj

MatchIt Object

Y

Response Vector

Value

SE for the ATT of Y

References

Lechner, M. (2001). Identification and estimation of causal effects of multiple treatments under the conditional indepence assumption. In M. Lechner & F. Pfeiffer (Eds.), Econometric Evaluation of Labour Market Policies (pp. 43-58). Physica-Verlag: Heidelberg.

Examples

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## Not run: 
  library(MatchIt)
  data("lalonde")
  m.out  <- matchit(treat ~ educ + black, data = lalonde)
  att(obj = m.out, Y = lalonde$re78)
  lechner_se(obj = m.out, Y = lalonde$re78)

## End(Not run)