I applied through college or university. The process took 1 day. I interviewed at Cornerstone Research (Washington, DC) in Feb 2011
Interview
Initially contacted via email to set up a phone interview. They stated the phone interview would only last 40 minutes, but it ended up being almost an hour. They start you off with a 2nd year analyst and they begin with behavioral questions and then jump right into a case. The first case wasn't too difficult and just when I thought I was done, they transfered me to a second interviewer who asked similar behavioral questions and then another case.
I interviewed at Cornerstone Research (New York, NY)
Interview
They were great! Two rounds of cases, with a few behavioral questions. Friendly and helpful throughout. I would say make sure you understand the specifics of economic consulting and how it differs from other types.
The interview was two back-to-back 30-minute motivation + case study, with one focusing on economics, and the other on finance. The economics-related topic could be one about the damage valuation.
Interview questions [1]
Question 1
What data would be required to conduct a damage valuation estimation?
I interviewed at Cornerstone Research (Boston, MA)
Interview
First round interview with 2 different interviewers. All virtual. Both asked standard behavorial questions (5-15 minutes) before jumping into a case. Cases are tailored to your experience, so whatever math based skills be prepared to use them. One of my interviewers really did not seem to want to be there, and only talked to me about behaviorals for 5 minutes before the case and ended early.
Interview questions [1]
Question 1
Tell me a bit about yourself
What was your favorite class you've taken and what did you learn
How can I set up a Multi-Linear-Regression to check whether or not accidents were caused by changes in tire treads
Intern applicants have rated the interview process at Cornerstone Research with 3.4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 75% positive. To compare, the company-average is 69.2% positive. This is according to Glassdoor user ratings.
Candidates applying for Intern roles take an average of 9 days to get hired, when considering 12 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 Intern according to 12 Glassdoor interviews include:
One on one interview: 56%
Phone interview: 22%
Presentation: 11%
Background check: 11%
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