Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
The paper provides sufficient conditions under which a nonrandom economic variable specific to some asset (the dependent variable) can be represented as a linear combination of the betas of some random characteristics of the asset (the independent variables) with some economy-wide factors. This generalizes Ross' APT that proves the above in the case where the dependent variables are expected returns and the independent variables are returns. This generalization will provide a theoretical basis for many existing multibeta relationships beyond the setting of asset pricing models and, thus, motivate their wider use in empirical and theoretical research.