>>13026565The problem with these kind of sentiments, that is always implicit in their assumptions, is that there is no easier path. An economics undergrad at a top 10 is a 9/10. If he takes extra math classes he will be a 10/10 applicant to research groups who use that kind of math.
If you have a top 10 math, physics, CS undergrad etc. who took those same classes they will have a much, much harder time motivating their reason to join an Econ PhD. Let's say they are an 8/10 candidate. They have a good chance because most 8+/10s will not apply to all research groups. But is not the best path. It is a possible path, nothing more. Profs always strongly prefer someone with training they understand.