求翻译：产品生命周期理论的主要代表人物有威尔士和弗农，其理论内容主要是运用市场营销理论来分析国际贸易上的可能。第一阶段：产品的创新阶段：人才——美国——知识密集型。第二阶段：产品的成长、成熟阶段,资本——其他发达国家——技术密集型和资本密集型。第三阶段：标准化阶段，价格——发展中国家——劳动密集型是什么意思？

Product life cycle theory, the main representatives are Welsh and Vernon, the theory is mainly the use of marketing theory to analyze the possibility of international trade. The first stage: the product innovation phase: talent - United States - knowledge-intensive. The second stage: the product of

product life cycle theory is the main representative figures and Vernon, Wales mainly apply its theoretical content marketing theory to the analysis of international trade on the possible. The first phase: Phase product innovation: personnel -- United States -- knowledge-intensive. Stage 2: the prod

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Main representatives are product life cycle theory in Wales and Mount Vernon, which focused on the application of marketing theory to analysis of international trade. First stage: product innovation stages: personnel--United States--knowledge-intensive. Second stage: the growth, maturity, capital-ot

The main representative figure of the products life cycle theory has Wales and not agricultural, its theoretical content is mainly to make use of marketing theory to analyze the possibility on the international trade. First stage: The innovative stage of the products: Talent --U.S.A. --The knowledge