So much bulls**t here. I am econ phd, wife is math phd specialized in finance (non us hrm so mrm)
First, no econ phd is qualified for a finance job, but no math phd is qualified for econ jobs. My wife tried to apply for jokes, nope.
If you wanna go to finance, you'd be stupid to chose econ.
Secondly, math phd is not such a strong indicator. What you need is a math phd with the right skills. Interviews always include the heavy math, but if you didn't invest half of your time in finance you have no idea what the question even is.
Heaps of pure math friends failed like ugrads in interviews because no one cares about your potential and smartness signal. Dont know programming, stats and finance? Enjoy having a f**king hard time finding a job.
Math and physics Phd can be a great asset, but only if you already know where the journey goes.
Everybody else does post docs and becomes essentially unemployable
The math grad students itt are in for a shock if they believe all they need is a math phd document showing they are smart