This paper analyzes the substituting effect of forest certification against tariff barriers using a space-price gradient model, and gives Suggestions.
本文利用空间价格梯度场模型分析了森林认证对关税壁垒的替代效应，并在最后提出了相关建议。
Based on the given parameters satisfied the hypothesis of the model, the model is solved and analyzed, and the equilibrium solution about on the tariff negotiation is obtained.
在给定满足模型假设条件的参数下对模型进行了求解与分析，并求出了模型的关税谈判均衡解。
Grossman and Helpman, in particular, model producers as contributing financially to incumbent politicians in return for their providing or maintaining tariff protection.
特别是在格罗斯曼与赫尔普曼设立的模型中，生产者资助了当权政客，以换取关税保护的实行或维护。
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