NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Selection Bias Adjustment in Treatment-Effect Models as a Method of Aggregation

Robert A. Moffitt

NBER Technical Working Paper No. 187
Issued in May 1996
NBER Program(s):   PE

The aim of this note is to interpret estimation of the conventional treatment-effect selection-bias model in econometrics as a method of aggregation and to draw the implications of this interpretation. In addition, the paper notes the connection of this interpretation with an older style of analysis using grouped data and illustrates the aggregation analogy with examples from the literature. The estimation technique used to illustrate the points is the method of instrumental variables.

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Document Object Identifier (DOI): 10.3386/t0187

Published: 1995 Proceedings of the American Statistical Association, pp. 234-238, (199 5).

 
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