This is the 7252nd most frequent Chinese word.
经济学
The study of economics.
In this sentence, '经济学' refers to the academic discipline of economics as a field of study.
他正在学习经济学。
He is studying economics.
Here, '经济学' denotes the science or subject matter of economics, emphasizing its practical applications.
经济学具有广泛的应用范围。
Economics has a wide range of applications.
In this example, '经济学' pertains to the theoretical framework of economics used for understanding and analysis.