Questions 26 to 30 are based on the following passage. Educating girls quite possibly yields a higher rate of return than any other investmentavailable in the developing world. Womens education may be unusual territory for economists, but enhancing womens contribution to development is actually as much an economic as a social issue. And economics, with its emphasis onincentives (激励), provides guideposts that point to an explanation for why so many girls are deprived of an edu
