Research Comment On: "Do Defaults on Payday Loans Matter?" by Robert Mann
In "Do Defaults on Payday Loans Matter?" author Robert Mann uses a difference-in-difference regression-based analysis to analyze "harm" in the payday lending market. He finds that little difference in changes in credit scores between payday defaulters and non-defaulters and uses this as evidence that payday loans do not cause harm. However, this study suffers from significant conceptual and technical flaws...