中小企業 聯合行為 卡特爾 聯合定價行為 中小企業聯合條款 例外許可中小企業聯合定價行為審查原則 交易穩定化原則 資訊透明化原則 效能競爭 消費者保護 自律公約 概括例外事由 Small and medium-sized enterprises SME Cartel General cartel ban The Fair Trade Law The Principle on the Stabilization of Transactions The Principle on the Transparency of Information The Examination Principles on Approval for the Exemption for the Coordination on Pricing Behavior of SME from General Cartel Ban Self-restraint convention clause Consumer protection Efficiency competition General clause