Cities: The Rise and Fall of Cities.- Reinventing Cities.- The Consumer City Center.- Urban Decline.- Urban Crime.- Agglomeration: Agglomeration Spillovers.- Geographic Concentration of Industry.- Sub centers.- Sprawl.- Homelessness: A Comparison of Homelessness Across Cities.- Poverty and the Role of Public Transportation.- Homeless in California.- The Effect of Regulation on Housing and Land Prices: Land Use Regulation.- Regulation and House Prices in Manhattan.- The Cause of Urban Regulation.- Rent Control.- Neighborhood Choice: Weather and Migration.- School Choice.- Neighborhood Effects.- Transportation: Urban Rail Transit Expansions.- Highways.- Housing Financing and Government Programs: Financial and Housing Wealth.- Real Options.- Low-Income Housing Subsidies.- Mortgage Credit Expansion.- Government Programs and Labor Markets.