However, private-sector participation in the extension of services to the poor in urban and rural areas remains more problematic, hinging on pricing and cross-subsidy policies that would enable the private sector to generate a fair return on its investments.
不过，在使私人部门参与向城市和农村地区的穷人推广服务方面较为棘手，关键是使私人部门能够从其投资获得公平收益的定价和交叉补助政策。