Countries with competitive insurance markets may also want to overhaul and improve their regulatory and supervisory systems to increase market efficiency. Insurance regulation and supervision are dynamic elements of economic policy that have to be adapted constantly to changing requirements, perceptions and economic needs. Insurance legislation and control are in fact currently under discussion and review in many countries that feature a variety of insurance structures. This is the case even in countries with relatively advanced systems of supervision, as for example in the United States of America and the European Union. Developments in these countries can present interesting insights for developing countries planning to improve their own regulatory system.