Ryan Hagen is a doctoral student in the Department of Sociology at Columbia University. His primary interest is how organizations encounter non-market risk. He is also conducting an historical project on how the political structure of the post-Redemption Southern United States shaped collective violence in the region at the end of the 19th and opening of the 20th centuries. He holds a BA in English and American Literature from New York University, and an MA in Sociology from Columbia University.
(2013) “The Influence of Political Dynamics on Southern Lynch Mob Formation
and Lethality.” Hagen, R., K. Makovi and P. Bearman. Social Forces 92(2)
757-787, December 2013.
(2013) Encyclopedia of Crisis Management. Penuel, Bradley K., M. Statler, and R.
Hagen, eds. Thousand Oaks, CA: SAGE.
(2013) “Structural Secrecy.” In Encyclopedia of Crisis Management. Penuel,
Bradley K., M. Statler, and R. Hagen, eds. Thousand Oaks, CA: SAGE.
(2011) “Maritime Piracy, 1979 to the Present.” In Encyclopedia of Disaster Relief.
Penuel, Bradley K., and M. Statler, eds. Thousand Oaks, CA: SAGE.