Developing, in this context, refers to the process of growing or advancing something, such as the middle class.
Related terms
Urbanization: The rapid growth of cities due to industrialization and migration from rural areas.
Social mobility: The ability of individuals or families to move up or down the social ladder based on factors such as income, education, and occupation.
Consumerism: A cultural mindset that emphasizes acquiring goods and services beyond basic needs, often associated with rising incomes and increased purchasing power.