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SIPA Bulletin 2025-2026
Master of International Affairs
Master of Public Administration
MPA in Economic Policy Management
MPA in Environmental Science and Policy
MPA in Global Leadership
Executive MPA
Degree Programs FAQs
Curriculum
Sample Course Plan
Doctoral Program
Alumni Placements
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Dual Degree Programs
Five-Year Joint Degrees
Executive Education
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International Fellows Program
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Courses
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Columbia & New York
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In the Media
How a Progressive Tax System Made Detroit a Powerhouse
Posted Aug 19 2015
Polly Cleveland helps make the case for a progressive tax system.