Economists Inc interview questions

Initial Phone Screen After which they asked me to send transcripts, cover letter and reference letter from previous role. Followed by 2 panel interviews back to back 1 with 2 economists 1 with 2 associates/sr. associates Invited in person for a panel interview with 4 associates followed by an interview with Managing Director followed by lunch. Then.... They scheduled me for one more round of interview and then received no response. Reached out to them again, where I was asked to share basic contact info for three co-workers from my previous company. I reached out again after sensing inactivity only to be told two weeks later that they will not move forward any more with my candidacy. The process took a solid 2 months and a lot of interview rounds.