This paper extends the classic factor-based asset pricing model by including network linkages in linear factor models …. We assume that the network linkages are exogenously provided. This extension of the model allows a better understanding … of the causes of systematic risk and shows that (i) network exposures act as an inflating factor for systematic exposure …

reduction (self-protection) so that correlation becomes endogenous. If prevention concerns only one risk, introducing a second … exogenous risk increases the level of prevention expenditures, even if correlation is negative. If prevention expenditures may …