A penalized two-pass regression to predict stock returns with time-varying risk premia
时变风险溢价下用于股票收益预测的惩罚两步回归AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接涉及无套利限制、时变因子载荷和风险溢价,并以股票超额收益预测为目标,对应资产定价、金融因子与收益预测。
时变风险溢价下用于股票收益预测的惩罚两步回归AI 解读 ↓
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We develop a penalized two-pass regression with time-varying factor loadings. The penalization in the first pass enforces sparsity for the time-variation drivers while also maintaining compatibility with the no-arbitrage restrictions by regularizing appropriate groups of coefficients. The second pass delivers risk premia estimates to predict equity excess returns. Our Monte Carlo results and our empirical results on a large cross-sectional data set of US individual stocks show that penalization without grouping can yield to nearly all estimated time-varying models violating the no-arbitrage restrictions. Moreover, our results demonstrate that the proposed method reduces the prediction errors compared to a penalized approach without appropriate grouping or a time-invariant factor model.