Cost of Protection: Where Do We Stand?
综述了静态效率视角下贸易保护成本的测算方法，指出这些估算并非来自自由化前后的计量分析，而是基于参数化模型的模拟，并探讨了不同保护度量及其福利成本。
Economists measure the cost of protection in terms of static efficiency, growth rates and firm- or industry-level productivity effects. This survey is devoted exclusively to the literature on the static efficiency. A key preliminary point to note is that estimates in this literature are not derived econometrically from pre- and post- liberalization data. Instead, they are based on simulations of partial- or general-equilibrium models that are parameterized using estimates from the literature and calibrated around a pre-liberalization base year. This paper explores alternate measures of protection and thei welfare costs.