Comments on “Naiveté, Projection Bias, and Habit Formation in Gym Attendance"

05 March 2021
Dr. Oliver März

NERA Consultant Dr. Oliver März authored an article titled “Comment on ‘Naiveté, Projection Bias, and Habit Formation in Gym Attendance,’” published in the peer-reviewed journal Management Science. The article demonstrates how the difference-in-differences regression model from the original article, “Naiveté, Projection Bias, and Habit Formation in Gym Attendance,” was wrongly implemented, resulting in erroneously reported statistical estimates. After fixing the implementation error, one of the original article’s main findings can no longer be supported.

Dr. März is an expert in the application of econometric techniques such as difference-in-differences regression analysis. The article was published in Volume 65, Issue 5 of Management Science, released in May 2019.