Final answer:
To address changes in the service sector, companies are innovating by offering competitive rates, expanding into the global services trade, and leveraging e-commerce and technology to reach a wider audience.
Step-by-step explanation:
Companies in the services sector are responding to changes such as the shift from manufacturing to services, globalization, and changes in trade by innovating and adapting their business models. For instance, telecommunication firms are addressing these challenges by offering low calling rates in urban areas to remain competitive. Similarly, the global services trade sector is experiencing growth by providing diverse services such as transport, tourism, and financial services that cater to an international clientele. In addition, the rise of technology and e-commerce platforms has allowed consumers to access products and services globally, leading to increased competition and a need for businesses to strategically position themselves.