Amanda Taub in the New York Times:
Yascha Mounk is used to being the most pessimistic person in the room. Mr. Mounk, a lecturer in government at Harvard, has spent the past few years challenging one of the bedrock assumptions of Western politics: that once a country becomes a liberal democracy, it will stay that way.
His research suggests something quite different: that liberal democracies around the world may be at serious risk of decline.
Mr. Mounk’s interest in the topic began rather unusually. In 2014, he published a book, “Stranger in My Own Country.” It started as a memoir of his experiences growing up as a Jew in Germany, but became a broader investigation of how contemporary European nations were struggling to construct new, multicultural national identities.
He concluded that the effort was not going very well. A populist backlash was rising. But was that just a new kind of politics, or a symptom of something deeper?
To answer that question, Mr. Mounk teamed up with Roberto Stefan Foa, a political scientist at the University of Melbourne in Australia. They have since gathered and crunched data on the strength of liberal democracies.
Their conclusion, to be published in the January issue of the Journal of Democracy, is that democracies are not as secure as people may think. Right now, Mr. Mounk said in an interview, “the warning signs are flashing red.”