DSA

DSA may stand for
 * Digital Services Act
 * Debt Sustainability Analysis

Typically, the analysis relies on public debt projections run under a set of macroeconomic assumptions (on actual and potential growth, interest rates and the government's primary balance) over a certain projection horizon.

External

 * IMF.org, Debt Sustainability Analysis, Introduction

Publication

 * Katia Berti and Giuseppe Carone, Assessing Public Debt Sustainability in EU Member States: A Guide, European Economy. Occasional Papers. 200. August 2014. Brussels.