Frédéric Le Play

Frédéric Le Play (1806–1882) was a French mining engineer and social theorist who studied working-class families comparatively and advocated social reform grounded in household research.

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Monographic method: A research approach that studies a single case in detail to understand social patterns. Le Play used intensive household studies as the foundation of his comparative sociology.
European Workers: A study by Le Play, published in 1855, presenting detailed accounts of working-class families across Europe. This work established his reputation through comparative family budgets and observations.
Émile Cheysson: A French engineer and social reformer who developed and promoted Le Play’s methods. Cheysson helped carry Le Play’s family-study tradition into later reform work.
Auguste Comte: A French philosopher who founded positivism and sought a scientific account of social order and change. Comte offered a broad theoretical system where Le Play favored detailed household evidence.
Family budget: A record of a household’s income and expenditure over a defined period. His budget tables made families’ material conditions comparable across places and occupations.
La Réforme sociale en France: Le Play’s 1864 book analyzing French social conditions and proposing reforms centered on family and local institutions. It presents his mature diagnosis of social disorder and program for reform.
Henri de Tourville: A French sociologist associated with Le Play’s school who developed a systematic method of social classification. Tourville extended the school’s comparative ambitions beyond household budgets.
Karl Marx: A German philosopher and political economist who analyzed capitalism through class conflict and historical materialism. Marx located industrial conflict in class relations, unlike Le Play’s emphasis on family and social authority.
Working class: People whose livelihoods depend primarily on wages from manual or routine labor. Working-class households were the principal subjects of his field investigations.
Patronage: A relationship in which a powerful person or institution provides protection or support to dependents. Le Play promoted paternal responsibilities by employers as part of social reform.