We propose a methodology for estimating and testing beta-pricing models when a large number of assets is available for investment but the number of time-series observations is fixed. We first consider the case of correctly specified models with constant risk premia, and then extend our framework to deal with time-varying risk premia, potentially misspecified models, firm characteristics, and unbalanced panels. We show that our large cross-sectional framework poses a serious challenge to common empirical findings regarding the validity of beta-pricing models. In the context of pricing models with Fama-French factors, firm characteristics are found to explain a much larger proportion of variation in estimated expected returns than betas.
Testing beta-pricing models using large cross-sections / Zaffaroni, Paolo; Robotti, Cesare; Raponi, Valentina. - In: THE REVIEW OF FINANCIAL STUDIES. - ISSN 0893-9454. - 33:6(2020), pp. 2796-2842. [10.1093/rfs/hhz064]
Titolo: | Testing beta-pricing models using large cross-sections | |
Autori: | ||
Data di pubblicazione: | 2020 | |
Rivista: | ||
Citazione: | Testing beta-pricing models using large cross-sections / Zaffaroni, Paolo; Robotti, Cesare; Raponi, Valentina. - In: THE REVIEW OF FINANCIAL STUDIES. - ISSN 0893-9454. - 33:6(2020), pp. 2796-2842. [10.1093/rfs/hhz064] | |
Handle: | http://hdl.handle.net/11573/1417628 | |
Appartiene alla tipologia: | 01a Articolo in rivista |
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