Using basic conception of resource and environmental economics and starting from Ricardo's land rent theory, we put forth a model to express the total economic value of farmland.

借鉴资源环境经济学价值理念分析耕地价值内涵，从李嘉图地租理论出发，立足于耕地的特殊属性，提出实现耕地总经济价值评估的理论模型。

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Gamal and Alaa remain in prison while on trial for alleged insider trading and using their influence to buy state land at a fraction of its value.

BBC: Court in Egypt orders retrial for Mubarak after appeal