Most popular posts – 2013

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1. Omitted Variable Bias Frequently, we see the term ‘control variables’. The researcher introduces dozens of explanatory variables she has no interest in. This is done in order to...
2. Behavioral Economics in action Do doctors unnecessarily prolong Colonoscopy? the answer is: they surely might....
3. The Importance of being inauthentic Presenting properly is important. Here is how I think it should look like,...
4. Understanding Multicollinearity Roughly speaking, Multicollinearity occurs when two or more regressors are highly correlated. As with heteroskedasticity, students often know what does it mean, how to detect...
5. How Important is Variable Selection? Very. If you have 10 possible independent regressors, and none of which matter, you have a good chance to find at least one is important....