It’s the summer festival season in the south of France, with the Cannes Lions International Festival of Creativity coming hot on the heels of the Cannes Film Festival and the Formula One Grand Prix just up the coast at Monte Carlo. But the French Riviera isn’t just a micro-climate in meteorological terms. Its status as a playground of the rich and famous inevitably means it has a degree of insulation to the economic weathering that plagues more industrialised regions.