Graphical diagnostics of endogeneity
We show that in sorting cross-sectional data, the endogeneity of a variable may be successfully detected by graphically examining the cumulative sum of the recursive residuals. An interesting case arises with a continuous or ordered (e.g., years of schooling) endogenous variable. Then, a graphical test for misspecification due to endogeneity (e.g., self selection) can be obtained without instrumental variables. Moreover, the sign of the bias implied by this endogeneity becomes deducible through such graphs.
|Date of creation:||06 Feb 2001|
|Date of revision:|
|Contact details of provider:|| Postal: Department of Economics, Umeå University, S-901 87 Umeå, Sweden|
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