At Harvard, in “Capitalism and the State,” colloquially known as CATS, Ms. Spar asked her students to flip their name cards sideways if they felt globalization was ultimately a good system. She paced excitedly, cheetah-print shoes roving the classroom floor.After some mumbling and paper shuffling, about 80 percent of the students flipped their placards, signaling a thumbs-up on globalization. Mr. Egbosimba disagreed. Leaning forward in his back-row seat, he asked his classmates to rethink the view that had given rise to the world as they knew it — the International Monetary Fund, Hyatt hot …