The serious business of being a social influencer

IT IS A sure sign that a hot trend has reached the mainstream when the tax authorities catch up. This week China promised a tax-evasion crackdown on social-media influencers, who are paid by brands to promote products online to armies of followers. One of the big stars, Viya, a 30-something fashionista known as the live-streaming queen, has already been fined $210m for not declaring her income. The size of that levy shows the sheer scale of the industry, which accounts for 12% of online sales in China. Outside China, influencers are also likely to have an enduring role in e-commerce. For all firms with brands—and together those brands are worth over $7trn—it is time to realise that influencing is more than just a hobby.