The scarcityof resources is all the time the center of the research. But presently the rare resources have begun to change from labor and capital into natural resources.
经济学一直是以研究稀缺资源为中心的，而现在的稀缺资源已从劳动和资本开始变为自然资源。
2
The scarcityof resources is always the center of the research of Economics. But at present the rare resources have begun to change to natural resources from labor and capital.
经济学一直是以研究稀缺资源为中心的，而现在的稀缺资源已从劳动和资本开始变为自然资源。
3
The wages of employees are agreed by the labor and management, the determining factors are the relative degree ofscarcity of the employees and the status of both sides.