Why did working-class neighbourhoods become centres of both cooperation and competition in industrial cities?

In industrial cities, working-class neighbourhoods functioned as complex environments defined by two contradictory patterns of social organization:

• Cooperation: Dense residential aggregation allowed the working class to organize large-scale protests to demand better wages and working conditions. Furthermore, ethnic and racial ties often served as essential support networks, helping recent migrants navigate their new environment by providing assistance with finding housing, employment, and friendship. These neighbourhood and class alliances also formed to resist the capitalist rationalization of urban space, aiming to preserve public services and maintain control over their local living environments.1

• Competition: Simultaneously, these same neighbourhoods were often characterized by ethnic or racial exclusiveness. This segregation frequently fueled competition among working-class members for limited jobs and desirable urban locations near workplaces. One ethnic group might guard its neighbourhood against "invasion" by another, or engage in ethnic succession, where an upwardly mobile group would vacate an area for a newly arriving ethnic population.1

Ultimately, the industrial city acted as a battleground between the interests of capital accumulation and the collective efforts of the working class to secure their own welfare and cultural identity.1