The eurozone's recovery is continuing, a survey of businesses has suggested, but it has also revealed a widening divergence in economic performance between France and Germany.
The latest purchasing managers' index (PMI) from Markit rose to 52.1 in December from 51.7 last month. A figure above 50 indicates expansion.
The eurozone as a whole has started to grow again after a long recession.
But Markit's Chris Williamson said the recovery was "lopsided".
These monthly surveys of business managers give an early indication of countries' economic performance.