The embourgeoisement thesis suggests that as manual workers gain higher wages and job security, they increasingly adopt the consumption patterns, lifestyles, and values typically associated with the middle class. This shift is often linked to the transition from industrial manufacturing to service-based economies, where information and technology drive new social strata. This process reflects a broader change in societal identity, where economic prosperity allows for greater social mobility and the blurring of traditional class boundaries.

Pierre Bourdieu identified three forms of cultural capital: the embodied state (long-lasting dispositions of the mind and body), the objectified state (cultural goods like books or instruments), and the institutionalized state (academic credentials and qualifications). 'Symbolic form' is not categorized as one of his three primary types of cultural capital, although symbolic capital is a separate concept in his broader theoretical framework.

The working class is historically defined by manual labor that requires significant physical exertion. Occupations such as cleaning, cooking in commercial environments, and construction (building) are classic examples of labor-intensive roles that involve physical endurance and manual skills, distinguishing them from white-collar or professional occupations that are primarily sedentary or cognitive in nature.

Robert Merton's Strain theory identifies 'innovators' as individuals who internalize the cultural goal of success (e.g., wealth) but lack the legitimate institutionalized means to achieve it. Consequently, they turn to illegitimate or deviant methods, such as theft or fraud, to attain these goals.

The nineteenth-century middle class was a complex group that grew alongside industrialization. They were typically urban dwellers who engaged in civic life, professional white-collar occupations, and voluntary associations. Due to their diverse economic roles—ranging from small business owners to managers—they often struggled to form a unified class consciousness, yet they collectively shaped the social and political landscape of the era.

The middle class is often defined by its ability to secure a level of material stability and 'comfort' that exceeds basic survival needs. This includes access to home ownership, education, and leisure, which are central to the middle-class lifestyle. While the upper class possesses wealth and the lower class often struggles with economic insecurity, the middle class is historically identified by its pursuit and maintenance of a comfortable, stable standard of living.

The working class is generally defined by occupations that involve manual labor or routine service tasks with limited autonomy and lower wages. Food service roles, such as waitstaff or kitchen workers, are classic examples of working-class employment, whereas office and administrative roles often fall into the white-collar or clerical categories, which typically require different skill sets and offer different socioeconomic benefits.

The objective method of social stratification relies on quantifiable indicators like income, occupation, and education to assign individuals to specific social classes. Unlike the reputational method, which depends on community perception, or the self-placement method, which relies on subjective identity, the objective method provides a standardized, empirical framework for researchers to analyze class structures within a society using statistical data.

Peter Saunders, a prominent sociologist, has argued that in modern industrial societies, social stratification is fundamentally structured by social and economic classes. These classes are defined by their relationship to the market, occupation, and the distribution of resources, which serve as the primary mechanisms for creating and maintaining social inequality and hierarchy within the modern social structure.

Assets refer to the total stock of economic resources owned by an individual or entity, which can include tangible property like land and real estate, as well as financial holdings such as stocks, bonds, and bank deposits. Unlike income, which is a flow of money over time, assets represent accumulated wealth.