Turbulent times ahead for tech firms

Some tech firms are facing plummeting stock prices, and mass lay-offs. It's partly down to falling advertising revenue. Concerns over the micro-blogging site Twitter - recently bought by billionaire Elon Musk - are at the forefront of many industry observers' minds

Twitter has hit troubled times since it was taken over by Elon Musk Source: Getty / SOPA Images/SOPA Images/LightRocket

This item was first produced for the BBC World Service