The authors develop a new set of indexes of exchange rate stability, monetary policy independence, and financial market openness as the metrics for the trilemma hypothesis. In their exploration, they take a different and more nuanced approach than the previous indexes developed by Aizenman,...

This paper presents a theoretical framework for policy making based on the “impossible trinity” or the “trilemma” hypothesis. A simple optimization model shows that placing more weight in terms of preference for each of the three open macroeconomic policies—exchange rate stability,...