Olivier Blanchard says economic activity in the BRIC countries has an affect on more developed economies.

奥利维尔·布兰查德说，金砖国家的经济活动对发达国家也有影响。

The BRIC countries – Brazil, Russia, India, China – have also been quickly increasing their income per head – the money earned and the wealth possessed by each person.

金砖四国——巴西、俄罗斯、印度、中国——也一直在迅速增加人均收入——每个人挣的钱和拥有的财富。