在人工智慧、資料中心與能源轉型驅動下，電源供應器已由傳統支援性零組件，轉變為影響系統效能、能源效率、可靠度與供應鏈安全之關鍵元件。本論文以結構－行為－績效 (Structure-Conduct-Performance， SCP) 模型為基礎，將產業區分為標準化市場、一般工業市場、高階技術市場與關鍵任務市場，分析不同市場結構下之訂價行為、獲利績效及其因果邏輯與動態反饋關係。 研究結果顯示，電源供應器產業並非單一市場結構，而是隨產品標準化程度、技術門檻、驗證要求與可靠度需求而分化。標準化市場因規格成熟、供應商眾多且替代性高，呈現分散競爭；一般工業市場因品質、服務與長期供貨需求，形成中度差異化競爭；高階技術市場與關鍵任務市場則因平台驗證、安規認證、可靠度與品質追溯要求較高，形成合格供應商較少、進入障礙較高之寡占或高度集中結構。 不同市場結構影響廠商之訂價策略，並形成不同獲利績效。標準化市場多採成本加成或市場行情訂價，績效主要來自規模效率、成本控制與資產周轉；一般工業市場可透過品質穩定、技術服務與供貨延續性取得有限服務溢價，績效來自重複訂單、客戶黏著與穩定現金流；高階技術市場可採共同開發、開發費與量產分段訂價，績效來自平台導入成功與系統整合價值；關鍵任務市場則具認證溢價、風險溢價與生命週期服務定價特徵，績效來自利基溢價、長期合約與供應穩定性。 整體而言，電源供應器產業之SCP因果邏輯可歸納為：市場結構影響訂價策略與競爭行為，廠商行為決定成本結構、差異化程度與獲利來源，產業績效則反向影響研發投入、擴產決策、客戶選擇與市場集中度。因此，產業競爭優勢在於企業能否將技術、認證、品質、供應鏈與客戶關係，轉化為可量產、具商業化價值且具有穩定現金流與資本報酬之產品與服務。;Driven by artificial intelligence， high-performance computing， data centers， electric vehicles， and energy transition， power supplies have become critical components affecting system performance， energy efficiency， reliability， and supply chain security. As demand for high efficiency， high power density， thermal management， and system integration increases， industry competition has shifted from manufacturing cost and mass production toward R&D， platform validation， safety certification， global supply chain deployment， and long-term service capability. Based on the Structure-Conduct-Performance (SCP) model， this thesis classifies the power supply industry into standardized， general industrial， high-technology， and mission-critical markets， and analyzes the causal relationships among market structure， pricing behavior， and profitability. The findings show that standardized markets are fragmented and mainly rely on cost-plus or market-based pricing， with performance driven by scale efficiency and cost control. General industrial markets show moderate differentiation， where quality， technical support， and supply continuity support service premiums and customer retention. High-technology markets are more concentrated due to platform validation and system integration requirements， with profitability derived from co-development， non-recurring engineering (NRE) fees， phased pricing， and platform adoption. Mission-critical markets have the highest entry barriers and feature certification， risk， and life-cycle service premiums， with performance supported by niche positioning， long-term contracts， and supply stability. Overall， market structure affects pricing and competitive behavior， firm conduct determines cost structure， differentiation， and profitability sources， and performance may further influence R&D investment， capacity expansion， customer selection， and market concentration. Competitive advantage depends on transforming technology， certification， quality， supply chain capabilities， and customer relationships into scalable products and services with stable cash flow and return on capital.
