"id","author_first1","author_last1","title","year","publication","volume","issue","pages","author_first2","author_last2","keyword0","keyword1","type" "402","Todd","Sandler","Economics of Alliances: The Lessons for Collective Action","2001","The Journal of Economic Literature","39-3","Sept.","869-896","Keith","Hartley","Alliances","Military","journal"