如何快速了解一个行业，参考这本框架地图

Core Viewpoint - The article emphasizes the importance of an industry lifecycle framework in conducting industry research, highlighting the need for a structured approach to understand market dynamics and investment opportunities [3][6]. Industry Lifecycle Framework - The industry lifecycle can be divided into four stages: introduction, growth, maturity, and decline, influenced by customer adoption patterns [6][7]. - The framework aligns with Everett Rogers' innovation diffusion theory, categorizing users into five types based on their adoption speed [6]. - The introduction phase is characterized by few users and uncertain market potential, while the growth phase sees rapid user adoption and increasing demand [6][7]. - In the maturity phase, growth slows as new customer acquisition diminishes, leading to increased competition and declining margins [7]. - The decline phase is marked by stagnant user growth and the emergence of substitutes, where only companies with significant scale or cost advantages can remain competitive [7][8]. Research Focus by Lifecycle Stage - In the introduction phase, the primary concern is the feasibility of the business model, focusing on real demand and sustainable profitability [10]. - For the growth phase, attention shifts to market size and potential, estimating future growth over the next 3-5 years [11]. - In the maturity phase, the focus is on the industry's competitive advantages and the potential for new growth avenues, assessing supply constraints and competitive dynamics [11][12]. - In the decline phase, research should pivot to substitute products, as the industry may no longer be a viable investment [11]. Market Size and Scale - Market size is crucial for determining the potential for large companies to emerge, with a focus on Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) [16][17]. - Different stages of the lifecycle require different market size metrics, with TAM being critical in the introduction phase and SAM and SOM becoming more relevant in growth and maturity phases [17]. Competitive Landscape and Profitability - The competitive landscape significantly influences profitability, with a focus on market share and industry concentration [23][24]. - Understanding horizontal competition (within the same industry) and vertical relationships (across the supply chain) is essential for assessing overall industry health and profitability [23][24].