Industrial Economics Incorporated. interview questions

There are two rounds of interviews. First round simple behavioral with set list of questions. Second round either remote or in person with full 4-5 hour day of interviews inclduing a case study.

Lengthy day-long interview with a challenging technical exercise. Important to have very strong Excel and data manipulation skills - this seemed like the most important selection criteria. Friendly interviewers, and an overall positive experience but challenging to go for an entire day non-stop.