Cities, Regions and the Decline of Transport Costs

The theoretical framework of urban and regional economics is built on transportation costs for manufactured goods. But over the twentieth century, the costs of moving these goods have declined by over 90% in real terms, and there is little reason to doubt that this decline will continue. Moreover, technological change has eliminated the importance of fixed infrastructure transport (rail and water) that played a critical role in creating natural urban centres. In this article, we document this decline and explore several simple implications of a world where it is essentially free to move goods, but expensive to move people. We find empirical support for these implications.

From John Lindsay to Rudy Giuliani: the decline of the local safety net?

This paper was presented at the conference "Unequal incomes, unequal outcomes? Economic inequality and measures of well-being" as part of session 4, "Economic inequality and local public services." The conference was held at the Federal Reserve Bank of New York on May 7, 1999. The authors contend that the future scope of city-based redistributive policies is limited. An important way in which policymakers work to reduce inequality is by redistributing income from the wealthy to the poor, channeling income tax revenue into spending on welfare and other services. The authors suggest, however, that New York City and other cities have had to scale back their redistributive policies. New York City's evolution from a manufacturing city to a service city accounts for more than one-third of the reduction in redistribution, because businesses in the service sector are more mobile and are therefore harder to tax than those in manufacturing. In addition, the authors document a more general decline in the relationship between land area and redistribution. In 1970, cities with greater land area tended to redistribute more income, but by 1990, this connection was no longer evident. The authors attribute this change to an erosion in the market power of large cities and observe that increased mobility and the existence of edge cities have contributed to a decline in the monopoly power once enjoyed by large cities.Public policy ; Public welfare ; Income distribution ; Income

Decentralized Employment and the Transformation of the American City

This paper examines the decentralization of employment using zip code data on employment by industry. Most American cities are decentralized--on average less than 16 percent of employment in metropolitan areas is within a three mile radius of the city center. In decentralized cities, the classic stylized facts of urban economics (i. e. prices fall with distance to the city center, commute time rise with distance and poverty falls with distance)no longer hold. Decentralization is most common in manufacturing and least common in services. The human capital level of an industry predicts its centralization, but the dominant factor explaining decentralization is the residential preferences of workers. Political borders also impact employment density which suggests that local government policies significantly influence the location of industry.

Cities, Regions and the Decline of Transport Costs

The theoretical framework of urban and regional economics is built on transportation costs for manufactured goods. But over the twentieth century, the costs of moving these goods have declined by over 90% in real terms, and there is little reason to doubt that this decline will continue. Moreover, technological change has eliminated the importance of fixed infrastructure transport (rail and water) that played a critical role in creating natural urban centres. In this article, we document this decline and explore several simple implications of a world where it is essentially free to move goods, but expensive to move people. We find empirical support for these implications.

Sprawl and Urban Growth

Cities can be thought of as the absence of physical space between people and firms. As such, they exist to eliminate transportation costs for goods, people and ideas and transportation technologies dictate urban form. In the 21st century, the dominant form of city living is based on the automobile and this form is sometimes called sprawl. In this essay, we document that sprawl is ubiquitous and that it is continuing to expand. Using a variety of evidence, we argue that sprawl is not the result of explicit government policies or bad urban planning, but rather the inexorable product of car-based living. Sprawl has been associated with significant improvements in quality of living, and the environmental impacts of sprawl have been offset by technological change. Finally, we suggest that the primary social problem associated with sprawl is the fact that some people are left behind because they do not earn enough to afford the cars that this form of living requires.

Sprawl and Urban Growth

Cities can be thought of as the absence of physical space between people and firms. As such, they exist to eliminate transportation costs for goods, people and ideas and transportation technologies dictate urban form. In the 21st century, the dominant form of city living is based on the automobile and this form is sometimes called sprawl. In this essay, we document that sprawl is ubiquitous and that it is continuing to expand. Using a variety of evidence, we argue that sprawl is not the result of explicit government policies or bad urban planning, but rather the inexorable product of car-based living. Sprawl has been associated with significant improvements in quality of living, and the environmental impacts of sprawl have been offset by technological change. Finally, we suggest that the primary social problem associated with sprawl is the fact that some people are left behind because they do not earn enough to afford the cars that this form of living requires.

Urban Growth and Housing Supply

Cities are physical structures, but the modern literature on urban economic development rarely acknowledges that fact. The elasticity of housing supply helps determine the extent to which increases in productivity will create bigger cities or just higher paid workers and more expensive homes. In this paper, we present a simple model that provides a framework for doing empirical work that integrates the heterogeneity of housing supply into urban development. Empirical analysis yields results consistent with the implications of the model that differences in the nature of house supply across space are not only responsible for higher housing prices, but also affect how cities respond to increases in productivity.

Urban Growth and Housing Supply

Cities are physical structures, but the modern literature on urban economic development rarely acknowledges that fact. The elasticity of housing supply helps determine the extent to which increases in productivity will create bigger cities or just higher paid workers and more expensive homes. In this paper, we present a simple model that provides a framework for doing empirical work that integrates the heterogeneity of housing supply into urban development. Empirical analysis yields results consistent with the implications of the model that differences in the nature of house supply across space are not only responsible for higher housing prices, but also affect how cities respond to increases in productivity.

Why Have Housing Prices Gone Up?

Since 1950, housing prices have risen regularly by almost two percent per year. Between 1950 and 1970, this increase reflects rising housing quality and construction costs. Since 1970, this increase reflects the increasing difficulty of obtaining regulatory approval for building new homes. In this paper, we present a simple model of regulatory approval that suggests a number of explanations for this change including changing judicial tastes, decreasing ability to bribe regulators, rising incomes and greater tastes for amenities, and improvements in the ability of homeowners to organize and influence local decisions. Our preliminary evidence suggests that there was a significant increase in the ability of local residents to block new projects and a change of cities from urban growth machines to homeowners’ cooperatives.