Extra points: simple code implementation that demonstrates how the method works Note that papers often have replication files published, and you may absolutely use those! I would even suggest that you look for papers that have replication data and files. For example, AEA journals are good place to look.

In the above question, what does the professor mean by simple code implementation to show how the method works? Does he mean I have to replicate the study using another dataset? Please clarify.