“…Bentzen and Smith (2002) study how sales of French wine in Denmark were affected by a call for a boycott of French products in response to the French nuclear testing in the South Pacific in 1995-1996; Chavis and Leslie (2009) and Ashenfelter, Ciccarella, and Shatz (2007) Our article is also related to the literature that studies the effect of social networks on collective action. This literature has focused on the effects of social networks on political participation in various countries, for example, Acemoglu, Hassan, and Tahoun (2014), Iskander (2011), Breuer (2012, Enjolras, Steen-Johnsen, and Wollebaek (2012), Tufekci and Wilson (2012), Valenzuela, Arriagada, andScherman (2012), andGonzalez-Bailon andWang (2013). There is also a recent literature that studies the link between the Internet and voter turnout in elections in different European countries, for example, Campante, Durante, and Sobbrio (2013), Czernich (2012), Falck, Gold, and Heblich (2014), Gavazza, Nardotto, and Valletti (2015), and Miner (2015).…”