International audienceOver the past 15 years, financial integration in the Euro Area has been conducted in part through the development of cross-border bank flows. This article examines the macroeconomic consequences of cross-border loans using a DSGE model of a monetary union estimated on German and French country data. We find that cross-border facilities significantly affect the international transmission of asymmetric shocks. This cross-border channel has had more impact on France as Germany and strengthened the dissemination of financial shocks between the two countries. Finally, the variations in the ECB's key rate became more sensitive to shocks of a financial nature at the expense of real shocks.Au cours des 15 dernières années, l'i...