"tier". Also, if lazy signals work, PR if the lack of the signal causes problems, that's a real incentive for real doctors to wear the lab coats or students to

"tier". Also, if lazy signals work, PR if the lack of the signal causes problems, that's a real incentive for real doctors to wear the lab coats or students to attend top-tier schools. It would be nice to make decisions based only on real value and assume all participants are rational and well-informed, but actual humans use lazy signals all the time.