I applied online. The process took 1 week. I interviewed at Cornerstone Research (London, England) in Oct 2025
Interview
interviewers are nice, case studies are interesting, not super technical, they mainly test economics knowledge. Practice basic econometrics, econ assumptions, financial economics basics. Cases are real so it also gives a flavour of the work they do at the company.
Interview questions [1]
Question 1
why econ consulting, why cornerstone
2 cases - one on market dominance, one on crypto
I interviewed at Cornerstone Research (San Francisco, CA)
Interview
First round is 2 back to back interview rounds with two different Cornerstone analysts/associates in the office you indicated. Pretty standard Econ consulting cases, not too difficult. Cases are adapted from Also some basic behavioral questions about yourself, interest in the field, research experience, etc.
Interview questions [1]
Question 1
Describe to me your research experience (with some specific questions about my research experience on my resume).
I interviewed at Cornerstone Research (Washington, DC)
Interview
First round 2 cases: Only cases questions.
Final round is onsite with 4 cases: They seem only care about cases, others are just fairly easy small talk. One securities, one valuation
I interviewed at Cornerstone Research (New York, NY)
Interview
Everyone was welcoming and the cases were interesting. The interviewers seem to be interested in seeing how you think as opposed to looking for a particular answer like you might find in a management consulting interview or a finance interview.
Analyst applicants have rated the interview process at Cornerstone Research with 3.3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 69% positive. To compare, the company-average is 69.2% positive. This is according to Glassdoor user ratings.
Candidates applying for Analyst roles take an average of 17 days to get hired, when considering 283 user submitted interviews for this role. To compare, the hiring process at Cornerstone Research overall takes an average of 17 days.
Common stages of the interview process at Cornerstone Research as a Analyst according to 283 Glassdoor interviews include:
One on one interview: 51%
Phone interview: 16%
Skills test: 13%
Personality test: 7%
Presentation: 5%
Background check: 3%
Other: 3%
IQ intelligence test: 1%
Group panel interview: 1%
Drug test: 0%
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