Batch 0008-013: The Thermal Arbitrage of Onsen Culture in Beppu — Geothermal Futures Trading, Bathhouse Membership Tiering, and Volcanic Risk Hedging

批次0008-013：别府温泉文化的热力套利——地热期货交易、澡堂会员分级与火山风险对冲

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Beppu’s 2,000+ hot springs operate under a municipal thermal futures market where operators buy and sell temperature stability guarantees for specific aquifer strata.
Traditional bathhouses tier memberships not by price but by ‘heat fidelity’—gold-tier patrons receive priority access during volcanic tremor events that disrupt lower-tier supply.

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