Fabrizio Panebianco

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Evidence is growing that forms of incivility-e.g. aggressive and disrespectful behaviors, harassment, hate speech and outrageous claims-are spreading in the population of social networking sites' (SNS) users. Online social networks such as Facebook allow users to regularly interact with known and unknown others, who can behave either politely or rudely.(More)
Many types of economic and social activities involve significant behavioral complemen-tarities (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 to peer effects, and the stock of passive smoke increases(More)
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