Milton , Nektarios, Panos Xenos, George Nektarios, Kostas Poulakis, and Michalis Chouzouris. 2015. “Efficiency Analysis of Lloyd’s Syndicates: A Comparison of DEA and SFA Approaches”. SPOUDAI Journal of Economics and Business 65 (1-2):27-46. https://spoudai.org/index.php/journal/article/view/190.