"Article 75 of the Italian Constitution enshrines the fact that Italy cannot hold a referendum on anything related to international treaties. Therefore, being membership of both the European Union and the euro by definition international treaties, it is highly unlikely that Italy will be the next country to leave the EU"
For Italy to give its people a say on leaving the EU, the Constitution would have to be changed. Obviously, that is no easy task and would require a strongly eurosceptic government with a serious will to leave the EU. This is the chain of events Naraparaju and Antonucci think needs to happen for Italy to drop out of the EU: "A eurosceptic party would have to win an election with an absolute majority and then set in motion the exit process after having changed the constitution with a two-thirds majority in both chambers or 'just' an absolute majority followed by a referendum. As eurozone membership is indissolubly linked to EU membership, leaving the EU would also automatically mean leaving the EMU". Fears that Italy's upcoming constitutional referendum, which is also seen as a referendum on Matteo Renzi's premiership, could trigger the country's exit from the EU, have been expressed by many. In August, Nobel Prize-winning economist Joseph Stiglitz told Business Insider that the referendum could lead to a "disastrous outcome" and a "cataclysmic event" in Europe. "However, while the populist Five Star Party is gaining support, it seems unlikely that it will be in the position to win a two-thirds majority any time soon, making it virtually impossible that Italy will leave the EU."