Prestige of the Brandeis International Business School (IBS) Scholars Program?

Colleges & Universities Brandeis University
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My S was also invited into this program and we have a number of questions about it as well. We did have lunch in the IBS building when we visited last year and it was a very nice building. I did find this statement on the website about rankings:

https://www.brandeis.edu/global/admissions/rankings.html