someone who believes in an economic system with only a small amount of government control, in which prices and earnings are decided by the level of demand for, and production of, goods and services

The new president is said to be a free marketeer. 据说这位新总统是个自由市场主义者。

They are free-marketeers with a social conscience. 他们是具有社会良知的自由市场主义者。