How does gta online earn money?

The Wikipedia entry supplied focuses on the game's release dates, platform availability, and basic gameplay description. It does not mention any revenue models, in‑game purchases, microtransactions, or other monetization mechanisms used by Rockstar Games for Grand Theft Auto Online. Therefore, based on the verified evidence, there is no documented explanation of how the game generates income. Any discussion of potential monetization strategies would be speculative and not grounded in the provided source. Since the question specifically asks about earning methods, the correct approach is to acknowledge the absence of this information in the evidence.