As for economics books, not a lot comes to mind because it's not my area. But Trade and Traders in Muslim Spain by Olivia Remie Constable is a good one.
But for social histories I've got a list!
The Handless Maiden: Moriscos and the Politics of Religion in Early Modern Spain, Mary Elizabeth Perry
In the Shadow of the Virgin: Inquisitors, Friars, and "Conversos" in Guadalupe, Spain, Gretchen Starr-LeBeau
Communities of Violence: Persecution of Minorities in the Middle Ages, David Nirenberg
Local Religion in Sixteenth-Century Spain, William Christian
Medieval Iberia: Readings from Christian, Muslim, and Jewish Sources, ed. Olivia Remie Constable
The Witches' Advocate: Basque Witchcraft and the Spanish Inquisition (1609-1614), Gustav Henningsen
Making Difference in Medieval and Early Modern Iberia, Jean Dangler
Women's Lives in Colonial Quito: Gender, Law, and Economy in Spanish America, Katherine Gauderman
Beyond the Lettered City: Indigenous Literacies in the Andes, Joanne Rappaport and Tom Cummins
Genealogical Fictions: Limpieza de Sangre, Religion, and Gender in Colonial Mexico, Maria Elena Martinez
Enemies and Familiars: Slavery and Mastery in Fifteenth-Century Valencia, Debra Blumenthal
My list is heavily skewed toward religion, but of course religion was a central, indispensable part of society in medieval and early modern Iberia. I hope there are some helpful books on this list!
My knowledge is not so great on the economy, but in terms of society and some aspects of the economy I recommend:
A touchstone on the subject is Fernand Braudel, The Mediterranean and the Mediterranean World in the Age of Philip II (University of California Press, 1995). Like it says in the title, Braudel treats Spain within the context of the Mediterranean world. The link is to a preview on Google Books.