econ       
noun [ U ] US informal uk/ˈiː.kɒn/ us/ˈiː.kɑːn/
 经济学(课程)
economics as a subject of study
  It would be a bad idea to start studying econ if you're no good at math. 如果你不擅长数学,开始学习经济学可不是个好主意。 
 an econ class/professor 经济学课/教授 
 - More examples
 - I never took econ so I don't know what that means.
 - I had no faith in the basic econ courses I took in college.
 - Note to econ majors: Yes, this is a simplified calculation.
 - Even a C-minus Econ 101 student can figure out the probable economic response.