长城基金杨光：挑战传统资产配置方法的新思路

Core Viewpoint - The article emphasizes the need for a paradigm shift in asset pricing and investment management, moving from traditional models to a more dynamic and adaptive approach that considers the non-linear relationships between assets and their roles within a portfolio [4][11][18]. Group 1: Asset Pricing Theory - Traditional asset pricing theories, such as the Capital Asset Pricing Model (CAPM), are based on strict assumptions of market efficiency and rational investors, which fail to explain market anomalies like momentum and value effects [4][12]. - The article argues that asset prices are influenced not only by their expected returns and risks but also by their roles in the overall investment portfolio and the dynamic relationships with other assets [4][11]. Group 2: Investment Strategy - The new investment philosophy focuses on systematically and proactively enhancing the risk-adjusted returns of investment portfolios rather than merely seeking absolute returns [4][11]. - The investment framework proposed is not about finding the "true value" of assets but about creating an adaptive system that can achieve stable growth across different market environments [7][16]. Group 3: Multi-Asset Allocation - The article discusses the importance of low correlation among assets in a multi-asset allocation strategy, which can significantly reduce the probability of negative monthly returns [22][23]. - A two-stage strategy combining CPPI (Constant Proportion Portfolio Insurance) and risk budgeting is suggested to enhance traditional methodologies and improve risk-adjusted returns [17][23]. Group 4: Market Dynamics - The article highlights that the correlation between assets is dynamic and can change with market conditions, which poses risks to traditional asset allocation frameworks that rely on historical data [12][15]. - The concept of "free lunch" in asset allocation, derived from low correlation, may diminish as market environments evolve, necessitating a deeper understanding of the underlying factors driving asset correlations [15][18]. Group 5: Future of Asset Pricing - The future of asset pricing is seen as a transition from a focus on historical data to an understanding of technological trends, industry changes, and collective human behavior [34]. - The new asset pricing framework is described as a three-dimensional investment model centered around technological advancement, new productive forces, and consensus-driven narratives [18][28].