The JPMorgan CEO said he sees economic and social damage from a longer stretch of working-from-home.
Work output by younger employees was particularly affected on Mondays and Fridays, the firm's study found.
JPMorgan Chase is requiring its most senior sales and trading employees to return to their offices.
The conduct includes customers misusing Paycheck Protection Program loans and other benefits and programs.
Former employees cannot discuss racial issues due to their non-disclosure agreement.
The biggest banks expect more economic pain.
The bank recently cut ties with at least four clients who were racially abusive to call-center reps.
Stimulus measures can make it hard to tell which companies are healthy and which ones aren’t, she said.
The bank has been placing workers’ personal items into sealed boxes to prepare desks for common use.
JPMorgan might station attendants outside elevators to help push buttons.