Political Economy and Urban Sociology: A New Paradigm

For much of the 20th century, sociologists explained cities largely through the lens of ecology – describing urban zones as natural, self-organizing environments shaped by competition and adaptation. But by the late 20th century, a new and sharper framework had emerged: the political economy of urbanism. This perspective shifted the focus from spatial patterns to power, asking not just how cities are arranged, but who benefits from that arrangement – and why.

From ecology to political economy: a paradigm shift
Capitalism and the city: core ideas
Collective consumption and the role of the state
Henri Lefebvre and the production of space
The city as a growth machine
Class conflict, race, and urban inequality
Gentrification as a case study in urban political economy
What separates this approach from ecological models
Relevance today

From ecology to political economy: a paradigm shift

The dominant framework before the political economy approach was the Chicago School of Urban Ecology, which emerged in the early 20th century. It treated cities like biological organisms, with neighborhoods competing for space in a process of “natural” succession. Sociologists like Robert Park and Ernest Burgess modeled urban growth as a set of concentric zones driven by neutral, natural forces – as if market competition, racial segregation, and poverty were simply facts of nature.

That assumption did not hold up. By the 1950s and 1960s, urban ecology’s inability to explain white flight, concentrated poverty, and mounting political unrest pushed a new generation of urban sociologists to look elsewhere. The political economy perspective that emerged placed economic structure, class relations, and state policy at the center of urban analysis – not ecology or spatial geometry.

Capitalism and the city: core ideas

The political economy of urbanism draws heavily from Marxist theory, though it adapts and extends it. Its central claim is simple but powerful: cities are not neutral containers of social life – they are products of capitalist accumulation. Land, housing, and infrastructure are not simply used; they are commodified, invested in, and leveraged for profit.

David Harvey (1973) was the first to explicitly link urban development to capitalism in a systematic way. For Harvey, cities serve capitalism’s need to find outlets for surplus capital. When industrial investment stagnates, capital flows into urban land and real estate – a process he called the secondary circuit of capital. This means that the physical expansion of cities is not driven by the needs of residents but by the logic of capital seeking profitable reinvestment.

Harvey’s key insight was that cities are not just where capitalism happens – they are how capitalism reproduces itself. Physical neighborhoods are developed, devalued through disinvestment, and then redeveloped at higher value to generate profit in a continuous cycle. Disinvestment devalues property as part of the process for later profitable revalorization – meaning that “blight” in urban neighborhoods is rarely accidental. It is often structurally produced.

Collective consumption and the role of the state

French sociologist Manuel Castells extended political economy analysis by focusing on collective consumption – the publicly funded services cities provide, including housing, transit, schools, and healthcare. Castells argued that these city-based services subsidize the wage rate and increase capitalist profits, making urban public services a key factor in capitalist accumulation. When governments cut these services or provide them unequally, the consequences fall hardest on working-class and marginalized communities.

This is where the state becomes central. The political economy framework does not treat government as a neutral arbitrator. Instead, the state organizes urban development in the interests of capitalism – through zoning laws, tax incentives for developers, infrastructure investment, and urban renewal programs that often displace low-income residents in favor of higher-value uses. State policies can reinforce or even create urban inequality, not just manage it.

Henri Lefebvre and the production of space

One of the most influential contributions to the political economy of urbanism came from French philosopher Henri Lefebvre, who argued that space is not a neutral backdrop – it is socially produced. Urban space reflects the power relations, conflicts, and interests of the society that creates it. Lefebvre’s notion of the “right to the city” asserts that all urban citizens should be able to shape their cities through democratic processes and access public goods and spaces equitably.

This was a direct challenge to the idea that market forces alone should determine who lives where, what gets built, and whose neighborhood gets investment. Lefebvre’s framework opened the door for analyzing urban space as a political terrain – a place where class, power, and rights are actively contested.

The city as a growth machine

One of the most influential American contributions to the political economy of urbanism came from sociologist Harvey Molotch, who introduced the concept of the “city as a growth machine” in 1976. Molotch, writing with John Logan (1987), argued that land markets are created through accumulation processes: powerful individuals and groups coalesce to form “growth machines” and compete with other cities to attract capital investment.

In this model, local elites – including developers, real estate interests, politicians, chambers of commerce, and local media – form coalitions to promote continuous urban growth, not because it benefits residents broadly, but because it maximizes the exchange value of land for those who own it. Logan and Molotch argued that cities function as environmentally destructive “growth machines” at the service of elite accumulation, with growth consistently framed as a public good even when its benefits are distributed unequally.

The growth machine concept helps explain why so many urban development decisions – stadium projects, luxury high-rises, tech corridors – get political and financial support even when residents in those neighborhoods oppose them or are displaced by them. Molotch’s focus on land owners and their collective promotion of urban growth radically shifted the center of gravity of studies of urban politics.

Class conflict, race, and urban inequality

The political economy perspective makes class conflict central to understanding cities. Urban inequality is not the product of individual bad choices or natural market outcomes – it is structurally produced by how capital, the state, and powerful interests interact in urban space.

Race is inseparable from this analysis, particularly in the United States. Processes like gentrification and segregation are largely seen as the combined effect of income inequality, social stratification, and racial discrimination. Practices like redlining – where the federal government, working through banks, systematically denied investment to neighborhoods of color from the 1930s through the 1960s – created the very conditions of disinvestment that later became targets for profitable redevelopment.

From the 1930s through the late 1960s, standards set by the federal government and carried out by banks explicitly labeled neighborhoods home to predominantly people of color as high-risk, cutting them off from investment. Decades later, those same neighborhoods became attractive for redevelopment – and their original residents were displaced. This is the political economy of urbanism in concrete action: state policy creating conditions that capital exploits, with communities bearing the cost.

Gentrification as a case study in urban political economy

No contemporary phenomenon illustrates the political economy framework better than gentrification. Defined broadly, gentrification is a process through which increased investment drives up property values and rents, displacing lower-income residents from historically disinvested neighborhoods. Government at the local, state, and federal levels sets the conditions for and catalyzes gentrification through public subsidy and policy – reinforcing the growth machine model.

Gentrification is not simply wealthy individuals moving into affordable areas. It is a structural outcome of policy choices: tax incentives for developers, public infrastructure investment in targeted areas, and zoning changes that favor high-density luxury development. Over the past fifty years, gentrification has grown from a phenomenon in a few Global North cities into a worldwide strategy for capital accumulation.

The benefits of gentrification – improved services and rising property values – are not distributed equally. Wealthier newcomers tend to reap more of the advantages, while lower-income and minority residents bear the brunt of the costs, losing not just housing but cultural spaces, community networks, and political voice. This unequal distribution is not a side effect – it is, according to the political economy perspective, central to how capitalist urban development functions.

What separates this approach from ecological models

The contrast with earlier ecological models comes down to one fundamental difference in assumption. Ecological models treated urban patterns as natural and apolitical – the result of competition, adaptation, and market equilibrium. The political economy framework treats urban patterns as politically and economically constructed – produced by specific decisions made by identifiable actors with identifiable interests.

Where ecology asked “how do cities grow?”, political economy asks “who benefits from that growth, who pays for it, and who gets to decide?” A paradigm shift emerged with the recognition that cities represented the interests of a particular economic system, were managed deliberately through political policy, were used to enhance power and privilege at the expense of others, and were the basis for the reproduction of inequality.

This is why the political economy of urbanism was not merely an academic shift – it reframed cities as sites of contestation and injustice, opening up questions about housing rights, equitable development, and democratic urban governance that ecological models could not even pose.

Relevance today

The political economy framework remains highly relevant for understanding 21st-century cities. Soaring housing costs in cities like San Francisco, London, and Mumbai; the displacement of communities of color through urban renewal; the concentration of wealth in downtown cores while peripheries decline – all of these are intelligible through the lens of political economy. As human society enters an “urban age,” the need to interrogate the nature of cities and urbanization processes has become more urgent.

The framework also informs policy debates. When cities offer massive tax breaks to attract corporations, when zoning laws block affordable housing construction, or when public transit investment follows gentrifying neighborhoods rather than communities of need – these are not neutral policy choices. They are the political economy of urbanism at work: decisions that reflect whose interests urban governance actually serves.

What do you think? If cities are shaped more by the logic of capital accumulation than by the needs of residents, what would it take for urban policy to genuinely prioritize equitable development? And looking at your own city, can you identify whose interests – landowners, developers, residents, or the state – seem to be driving key urban decisions?

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Table of Contents

From ecology to political economy: a paradigm shift 🔗

Capitalism and the city: core ideas 🔗

Collective consumption and the role of the state 🔗

Henri Lefebvre and the production of space 🔗

The city as a growth machine 🔗

Class conflict, race, and urban inequality 🔗

Gentrification as a case study in urban political economy 🔗

What separates this approach from ecological models 🔗

Relevance today 🔗