For skilled occupations the supply of labour is typically fairly inelastic, because few workers are capable of doing the work.对于技术工作来说，劳动力供给的变化通常是比较小的，因为能胜任工作的工人非常少。The demand for services such as water, gas, and electricity is relatively inelastic.对于诸如水、气、电服务的需求是相对稳定的。