A student receives a bachelor's degree in economics and then achieves gainful employment as an economic analyst with a Fortune 500 company. This new worker is likely to enhance the economy's productivity through .

specialization of labor

Explanation:

Specialization of labor also commonly known as division of labor,  involves the division of a large tasks into smaller tasks and appropriated to different employees based on their specialization. This will enable the employees to work effectively and efficiently. In other words specialization of labor invloves the segmenting of big task into workable small task that can be effectively carried out by an employee or group of employees.

The student. who is a graduate of economics is likely to enhance the economy's productivity of the company when economic related tasks are assigned to him.