Template for External Sustainability Assessment

This manual explains in detail the external sustainability assessment approach following Castillo (2016), given by the stock-flow relationship among net external positions, non-income current account, and real exchange rate. This approach consists of determining the non-income current account over GDP that would stabilize a benchmark net foreign asset (NFA) position over the mediumterm, and a "gap" by comparing the NFA-stabilizing non-income current account over GDP with its value expected to prevail over the medium term. The text develops an External Sustainability Template and provides guidance in the customization of empirical assessments by addressing three methodologies: Standard Approach, Endogenous Net Foreign Assets Dynamics Approach, and Fan-Charts Approach.