The phenomenon you speak of -- populism of the "Right" and neoliberalism of the "Left" -- takes the most depressing form in Hungary.
In the case of France, though, it's more a case of the "Center-Right" literally integrating the "Center-Left" into its own political formation than anything else. The number of right-wing socialists that Sarkozy has incorporated into his administration is striking: Elaine Sciolino, "Socialist Defectors in France," 17 July 2007, <http://www.iht.com/articles/2007/07/17/news/france.php>. As for the stance toward the ECB that Sarkozy has taken, it is akin to that of Royal during her presidential campaign: "Ségolène Royal s'en prend à la BCE et prône une 'Europe des gens,'" 7 December 2006, <http://www.lemonde.fr/cgi-bin/ACHATS/acheter.cgi?offre=ARCHIVES&type_item=ART_ARCH_30J&objet_id=969039&clef=ARC-TRK-G_01>.
Convergence is the name of the game here.
Monetary policy, it seems, has become more of a battleground than before, because all other traditional Keynesian policy instruments (progressive taxation, social welfare programs, public works programs, etc.) have been, to one degree or another, abandoned by most socialists and social democrats: Simon Kennedy and Matthew Benjamin, "Central Banks Face Rising Pressure from Politicians," Bloomberg News, 19 February 2007, <http://www.iht.com/articles/2007/02/19/business/banks.php>.
Moreover, on the global scale, Euro zone politicians who are still attached to the statist tradition, like French politicians across the ideological spectrum, probably feel that contradictions of the mutually dependent relations between the USA and East Asia have been solved at Europe's expense, requiring state intervention on their part to counteract them. -- Yoshie