In this paper, a short survey is given on the contents and some problems of the theory of optimal currency areas. In addition, a new criterion for the assessment of the optimality of a currency area is proposed: the ability of member states of a monetary union to adjust their economic system to...

Renewable energy promotion has been one of the key driving forces of the world’s climate change mitigation strategy. Policymakers have argued that the transition towards a low-carbon energy system has sound economic and social reasoning, since generates economic growth and employment. This...