The Post-Call Forecast That Starts Before the Call Ends
TL;DR for operators An earnings-call model can pass a chronological train-test split while being evaluated against returns that began before its complete input could have been available. In a 552-call audit, Ma and colleagues1 find that moving the return start from documentary call-start time to reconstructed audio completion plus a stipulated 15 minutes reverses 9.4% of return signs and changes 28.3% of fixed-cutpoint quintile labels. ...