答案：Human resources have the following four necessary qualities that help an organization gain a sustainable competitive advantage:1 . Human resources are valuable. High-quality employees provide a needed service as they perform many critical functions.2 . Human resources are rare. A person with high levels of the needed skills and knowledge is not common.3 . Human resources cannot be imitated. To imitate human resources at a high-performing competitor, one would have to first figure out which employees are providing the advantage and how. Then people would need to be recruited who can do precisely the same thing. Finally, systems would have to be set up to enable those people to imitate the competitor.4 . Human resources have no good substitutes. When people are well trained and highly motivated, they learn, develop their abilities, and care about customers. It is difficult for another resource to match committed and talented employees.
