Robert Shiller, teaching Yale's Financial Markets course, turns to the financial structures behind public and charitable causes. He explains how nonprofits sustain moral and social missions, and where the line between for-profit and nonprofit organizations blurs given corporate taxation and government regulation. The lecture moves into state and local government finance, distinguishing operating budgets from capital budgets and explaining why municipal bonds carry tax-exempt status. In the final third, Shiller traces the history of government social insurance, from progressive taxation through public services to old age, survivors, and disability insurance, including its invention in Bismarck's Germany. He closes by tying these developments to broader advances in information technology and behavioral finance. Chapter markers break the seventy-three minute lecture into nine segments, from nonprofit structure through OASDI's German origins, giving the talk a clear throughline from individual charitable giving to national social insurance systems.