Student or Learner
For those terms and words in economics, shall I say they are economic/economics terms? Because I found that in The Economist, they use "economics terms", while Economics Wisconsin, they use "economic terms".
Economist: economics terms
Economics A-Z terms beginning with A | The Economist
Economics Wisconsin: economic terms
Glossary of Economic Terms and Concepts
Anthony the learner
[AmE - not a teacher]
To me, "Economics" is "the study of", and therefore "Economics terms" are the jargon associated with the area of study. "Economic terms" are terms associated with anything "Economic". It would be like saying
Does that help?
(I also think you may be reading too much in to two examples.)