Something many statisticians fear:
Note: the original image showed three pumpkins with “endogeneity” carved across them. This photo seems lost to time, so I found a replacement that works.
Michael A. Allen is an Associate Professor of Political Science at Boise State University. His research focuses on international conflict, military alliances, and quantitative methods in international relations and comparative politics.

Halloween: Kürbisse des Schreckens
Heute ist hier Halloween. Vorsorglich habe ich schon einmal ein Schüssel mit Süssigkeiten bereit, mal sehen ob wer vorbeikommen wird. Ich war noch nie in den USA während dieser Zeit und bin dementsprechend gespannt. Inzwischen scheint das Fest auf der….
“In an econometric model, a parameter or variable is said to be endogenous when there is a correlation between the parameter or variable and the error term. Endogeneity can arise as a result of measurement error, autoregression with autocorrelated errors, simultaneity, omitted variables, and sample selection errors. Broadly, a loop of causality between the independent and dependent variables of a model leads to endogeneity.”
Plans for Woodworking Projects
I don’t get it, but is that all carved in a circular pattern on the same pumpkin?
Cecilia Gorrell
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