Hello,

Excellent article. There is a lot of information of this ratio, but this is pretty clear.

Can you please explain a bit more the investment horizon you explain in the previous comment? For example, if I work with a two year time horizon investment I should generate data for the previous two years and if it is mean reverting expect to reverse the next two years? or if it is mean reverting is probably going to revert quicker? For example, generate two years data and expect to revert in the next two months.

Do you know if there is any study about this?

Thank you very much. It is very helpful.

Andres