César J. Ayala

César J. Ayala is a Professor of Sociology at the University of California, Los Angeles, where he maintains an office in Haines Hall. His academic work focuses on Caribbean studies, particularly Puerto Rican history and sociological analysis of colonialism and racial inequality.

• Ph.D. in Sociology, State University of New York at Binghamton
• M.A. in Sociology, State University of New York at Binghamton
• A.B. in History, Princeton University

Ayala's research centers on comparative historical sociology of colonialism, with special attention to racial inequality in Puerto Rico. His work challenges universalist conceptions of racism by demonstrating how historical specificity shapes racial formations. He has conducted extensive research on the sugar industry in the Spanish Caribbean, Puerto Rico's economic development, and comparative analyses of racial inequality across the Americas. His current collaborative project with Rick Baldoz of Brown University examines 'The Bordering of America: Hawaii, the Philippines, Cuba and Puerto Rico after the War of 1898.'

Ayala's publications reveal a consistent focus on historical patterns of economic development, land tenure, and racial formation in the Caribbean. His work demonstrates how Puerto Rico's distinct historical trajectory—particularly the larger proportion of free Afro-descendants compared to enslaved populations during the 19th century—created different patterns of racial inequality than those found in the United States. His scholarship bridges quantitative historical analysis with theoretical insights about race, colonialism, and economic development.

Ayala has authored several influential books including 'American Sugar Kingdom: The Plantation Economy of the Spanish Caribbean, 1898-1934' (1999), 'Puerto Rico in the American Century: A History Since 1898' (2007, co-authored with Rafael Bernabe), and 'Agrarian Puerto Rico: Reconsidering Rural Economy and Society, 1899-1940' (2020, co-authored with Laird Bergad).

His research has examined the depopulation of Puerto Rico, regional income inequality, natural and man-made disasters affecting the island, and the historical roots of contemporary racial inequality. Ayala's work demonstrates how Puerto Rico's unique historical development—particularly the existence of a large free Afro-descendant population, multiracial working and middle classes, and skilled Black workers in the sugar industry—created different patterns of racial inequality compared to the United States.