The paper uses a Walrasian two-period financial market model with informed and uninformed constant absolute risk averse … (CARA) rational investors and noise traders. The investors allocate their initial wealth between risky assets and risk …’ prediction coefficient but makes that of the uninformed investors diminish. Inflation does not affect rational investors’ risk …

decompositions, derives a network risk model for a portfolio of assets. As a normalized measure of the sum of variance contributions … deriving the network risk model, the portfolio covariance matrix is decomposed to obtain the network-driven component of the … both the variance and covariance decompositions. In a third step, using quantile regressions, the proposed network risk …