A leading Israeli think tank on Monday said it has found that Israelis are increasingly losing faith in their government and most Israeli public institutions — findings that mirror the global trend of dissatisfaction and cynicism that helped propel Britain’s exit from the European Union and the victory of President-elect Donald Trump. The Israel Democracy Institute also found a continuing nationalistic streak among the country’s Jewish majority, with more than half of respondents in a nationwide survey opposed to allowing Arab political parties into the governing coalition. Tamar Hermann, an Israeli professor who led the research, said the study found...