Formulation of Appropriate Laws: A New Multidisciplinary Modelling Approach and an Application to Electronic Funds Transfer Regulation. Efficient laws have profound positive social, economic, political and welfare effects. As a consequence, the formulation of efficient laws is a central issue in the study, practice and implementation of laws. Fragmented approaches to the formulation of laws such as comparative law analysis and welfare economic analysis of laws exist in the current literature; they even occasionally rear their heads in the practice and implementation of laws. However, what...