We quantitatively assess the macroeconomic effects of country-specific supply-side reforms in the euro area by simulating EAGLE, a multi-country dynamic general equilibrium model. We consider reforms in the labor and services markets of Germany (or, alternatively, Portugal) and the rest of the euro area. Our main results are as follows. First, a unilateral markup reduction by 15 percentage points in the German (Portuguese) labor and services market would induce an increase in the long-run German (Portuguese) output equal to 8.8 (7.8) percent. Second, cross-country coordination of reforms would add extra benefits to each region, by limiting the deterioration of relative prices and purchasing power that a country faces when implementing reforms unilaterally. In the long run German (Portuguese) output would increase by 9.2 (8.6) percent. Third, cross-country coordination would make the macroeconomic performance of the different regions more homogeneous, in terms of price competitiveness and real activity. Overall, our results suggest that while reforms implemented individually by each country in the euro area will produce positive effects, cross-country coordination produces larger and more evenly distributed (positive) effects.