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Bill

I am an economist with interest and expertise in antitrust, health economics, industrial organization, and applied econometrics.

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73 What do “endogeneity” and “exogeneity” mean substantively? May 21 '13
64 How to interpret coefficients from a polynomial model fit? May 1 '14
33 Bootstrap prediction interval Jan 3 '17
32 What is the reason the log transformation is used with right-skewed distributions? Jul 11 '14
28 Back transformation of an MLR model May 3 '13
27 Logistic regression: maximizing true positives - false positives Oct 21 '13
18 Mathematical definition of causality Sep 12 '13
14 Why at all consider sampling without replacement in a practical application? Sep 11 '13
14 Modelling when the dependent variable has a “cut-off” Jan 22 '14
12 Is the estimated value in an OLS regression “better” than the original value Jan 10 '14
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