The note assesses the short-term effects of crisis and policy
interventions on potential growth and public finances by exploiting the
information embedded in macroeconomic and fiscal forecasts
elaborated by the European Commission. In order to identify channels
of transmission of the crisis and quantify their corresponding impact on
GDP and public finances, the revisions of forecast concerning the
variables of interest are mechanically broken down into revisions of the
underlying determinants. Short-term losses of potential output mainly
result from contracting real investment and rising unemployment. As a
consequence of the crisis, public finances deterioration results from the
workings of automatic stabilisers and the discretionary anti-crisis
measures undertaken, but it also entails a weakening in the structural
determinants of budget balances.