Thanks to Kit Baum a bug fix of the -ldecomp- package is now available
from ssc. To install type within Stata -ssc install ldecomp, replace-
or -adoupdate-. The package is described in (Buis 2008).
-ldecomp- decomposes estimates from -logit- model into direct and
indirect effects. It is generalization of a method by Erikson and
colleagues (2005). The original method assumed that the variable
through which the indirect effect occurred is normally distributed,
-ldecomp- relaxes that assumption by allowing that variable to have any
distribution. -ldecomp- also has the -normal- option, which enables
users to estimate the original model as proposed by Erikson and
colleagues (2005). This option produced an error message, and this has
now been fixed.
-- Maarten
Buis, Maarten L. (2008) Direct and indirect effects in a logit model.
http://home.fsw.vu.nl/m.buis/wp/ldecomp.html
Erikson, R, J.H. Goldthorpe, M. Jackson, M. Yaish, D.R. Cox (2005). On
class differentials in educational attainment. Proceedings of the
National Academy of Science, 102(27): 9730-9732.
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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