You probably haven't looked that hard. Somalia case studies are ubiquitous in libertarian (anarchist-leaning) circles. The general claim seems to be that, yeah, stateless Somalia is way worse than high-functioning governments like the United States, but better than its neighbor states and better than it was before it became stateless.
Leeson's article is probably the best on the topic:
Leeson's article is probably the best on the topic:
http://www.peterleeson.com/Better_Off_Stateless.pdf