Some American conservatives demonize President Obama’s fiscal stimulus and health care overhaul as a dangerous turn toward European-style Socialism — but it is Europe’s right, not left, that is setting its political agenda.

Europe’s center-right parties have embraced many ideas of the left: generous welfare benefits, nationalized health care, sharp restrictions on carbon emissions, the ceding of some sovereignty to the European Union. But they have won votes by promising to deliver more efficiently than the left, while working to lower taxes, improve financial regulation, and grapple with aging populations.

Europe’s conservatives, says Michel Winock, a historian at the Paris Institut d’Études Politiques, “have adapted themselves to modernity.”