Is the economic decline of Europe worse than the last decades of the Qing dynasty? That’s a question posed by Luis Vassy, director of Sciences Po, one of France’s premier universities. It has caused something of a stir in Europe and China.“The European Union has seen its share of the world economy fall from 30 per cent to 17 per cent between 2008 and 2025, a span of 17 years,” he wrote in Le Grand Continent, a European current affairs publication, last week.“China covered the same distance...