Research paper (Theory + Practice) that includes economics + data analytics

I need to work on a paper, but I still don't have a topic with the idea of leaving you open field for working on what you prefer. I need a 60 pages paper + a data analysis in python or other languages. For the data you have to find it yourself or I can help you with that, this is the reason I have left the topic open, so you can firstly check the amount of data you can find.