Efficiency of labor refers to how well workers can perform tasks to produce goods or services. To increase efficiency, constant training of workers is necessary to ensure they acquire new skills and knowledge relevant to their tasks. Training can also help workers to learn new methods and techniques that can help them to perform their tasks more effectively and efficiently. Retirement of workers on a regular basis is not necessarily an effective way to increase efficiency of labor, as experienced workers can also be valuable contributors to the organization. Engaging only expatriates can be expensive and may not be a sustainable solution for all organizations, especially those operating in developing countries. Placing an embargo on recruitment can limit the organization's ability to hire new talent and keep up with changing market demands.