[1][2] Arrom has published on groups and issues that have largely been ignored in traditional accounts, including women, gender, the family, social welfare, popular politics, and the poor, with particular attention to the nineteenth century.
[6] Arrom has published four monographs, three edited volumes, and numerous scholarly articles on Latin American social and legal history, especially of Mexico from 1770–1910.
It also calls into question the utility of standard political markers and contrasting views of Liberals and Conservatives for institutional and social history.
By showing the resurgence of Catholic lay organizations and the limitations of public social welfare institutions, it also contradicts the dominant narrative of the decline of religion and the construction of a strong State during the Porfirian period.
[12] In her interview with Hubonor Ayala Flores, Arrom described the stereotypes she challenges as "zombie theories" that are so ingrained that they refuse to die even in the face of contradictory evidence.