Abstract: Although military cooperation among rebel groups in multi-party civil wars could help rebels defeat or extract concessions from an incumbent government, violent conflict among rebel groups is empirically prevalent. Why do rebel groups in multi-actor civil wars choose to fight one another? This paper models the strategic dilemma facing rebel groups in multi-party civil wars as an alter...

This essay analyzes the causes of civil wars in the Democratic Republic of Congo (DRC) by testing several hypotheses at the national, regional, and systemic levels. Particular emphasis is given to the current debate over the prevalence of the grievance and greed approaches in spurring civil wars. The analysis employs either robust probit or instrumental variable probit to deal with endogeneity ...

This paper uses documentary records of the bromine cartel from 1885 to 1914 to evaluate the contributions of noncooperative, repeated game models of collusion to our understanding of the determinants of cartel success and the causes of price wars. It finds that many of the variables that determine an industry’s ability to collude in these models—the discount rate, the information structure, the...

Two new fossil species of Ostracoda belonging to the genus Bythocythere Sars, 1866, Bythocythere solisdeus n. sp. and to the genus Cytheropteron Sars, 1866, Cytheropteron eleonorae n. sp. are described. The specimens come from the upper silty sand layers of the Globorotalia truncatulinoides excelsa Zone (“Sicilian” stage), cropping out in “Cala S. Antonino” along the western side of the Cape Mi...