Many types of economic and social activities involve significant behavioral complementarities (peer effects) with neighbors in the social network. The same activities often exert externalities that cumulate in stocks affecting agents' welfare and incentives. For instance, smoking is subject to...

Many types of economic and social activities involve significant behavioral complementarities (peer effects) with neighbors in the social network. The same activities often exert externalities that cumulate in "stocks" affecting agents' welfare and incentives. For instance, smoking is subject to...

Many types of economic and social activities involve signifcant behavioral complementarities (peer effects) with neighbors in the social network. The same activities often exert externalities, that cumulates in "stocks" affecting agents' welfare and incentives. For instance, smoking is subject...

Many types of economic and social activities involve significant behavioral complementarities (peer effects) with neighbors in the social network. The same activities often exert externalities that cumulate in "stocks" affecting agents' welfare and incentives. For instance, smoking is subject to...