Local governments can provide services with their own employees or by contracting with private or public sector providers. We develop a model of this "make-or-buy" choice that highlights the trade-off between productive efficiency and the costs of contract administration. We construct a dataset...

American local governments own and manage a wide portfolio of enterprises, including gas and electricity companies, water systems, subways, bus systems and schools. Existing theories of public ownership, including the presence of natural monopolies, can explain much of the observed municipal...