英文名称：Perfect Competition 中文名称：完全竞争又称纯粹竞争，是一种不受任何阻碍和干扰的市场结构，它具备以下特征：1. 市场上提供的每一项产品和服务都是同质的；2···

A position undertaken by an investor that would eliminate the risk of an existing position, or a position that eliminates all market risk from a portfolio. In···