A study covering 29 European countries has confirmed again that gender inequalities continue to affect choice of study and educational outcomes among boys and girls. The investigation, conducted by the Eurydice network which collects and analyses data on education systems, warned against "over-simplistic solutions". Androulla Vassiliou, the European Commissioner for education, noted that differences between the sexes were more complex, adding: "Schools are overwhelmingly staffed by women, but education systems are managed by men. Most graduates are female, and most school drop-outs are boys. We need to base gender equality policies on these realities".