25.9.5
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DP
DAVID POLINSKY
2 Credentials
COLUMBIA BUSINESS SCHOOL EXECUTIVE EDUCATION
hereby recognizes that
POLINSKY DAVID
has attended and completed
Blockchain in Business: Beyond the Hype
January 2022
Pierre Yared
Vice Dean, Executive Education Columbia Business School
Blockchain in Business: Beyond the Hype
January 12, 2022
Emeritus
THIS IS TO CERTIFY THAT
DAVID POLINSKY
HAS SUCCESSFULLY COMPLETED THE EXECUTIVE PROGRAM
MASTERING NEGOTIATION AND INFLUENCE
PETER HIRST
Senior Associate Dean, Executive Education
OCTOBER 2021
MASTERING NEGOTIATION AND INFLUENCE
October 30, 2021
Emeritus
