Cornerstone Research Business Analyst interview experience

Got offer

Hard

Positive

Washington, DCPosted Jun 2023 · Candidate report, summarized by Dataford

I interviewed for the Business Analyst role in a more difficult, economics- and econometrics-leaning track, with an interviewer-led case format that pushed me to reason through quantitative details under pressure across two rounds.

Round 1 (behavior + cases, interview-led) — Started with why Cornerstone/why econ consulting plus resume-based questions, then moved into case interview questions where the exact flow varied; interviewers were helpful during the case.
Round 2 (multiple back-to-back cases on site) — A longer final stage with several back-to-back interviews (often four) involving harder cases like M&A/financial studies or litigation-style analysis; at times I had to comment on variables and methods (e.g., whether regression would apply). Outcome: I didn’t get an offer, and the takeaway was that

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