Answer:
There could be various types of conceptual papers such as development of theories, expansion of research methods, commentaries, and discussions. The structure of the paper mainly depends on the journal to which author wants to submit. However, in all conceptual papers there has to be an introduction entailing the need for the paper, what is already written about the subject, and what this new paper adds to the literature. The remaining subsections are authors' discretion. Those conceptual papers in which the authors clearly state their methodology and the sources for argumentation could be based on extensive and systematic literature reviews. A general structure could be:
Introduction (Explaining the need of and international relevance of the paper and a few statements about the existing literature)
Background (A detailed discussion of the previous literature on the very subject)
Purpose/Aim
Major arguments along with the supporting literature
Discussion (Implications, future research, limitations)
Conclusion
