gig economy companies, such as uber technologies inc or deliveroo, connect drivers and riders to customers while taking little responsibility for them workers log into these software apps whenever they want to work, but the firms don’t regard them as employees (even if they sometimes offer limited benefits) zero-hour contracts are w the employer isn’t obliged to provide any minimum number of working hours, while the worker doesn’t have to accept any work offered  such contracts also exist in more traditional areas of the u k economy, including the care, retail and leisure industries