a tractable macroeconomic framework to evaluate Thailand’s proposed Thai-Boosty digital stimulus executed on the ARC network with USDC settlement. The model integrates: (i) endogenous money creation via domestic circular spending with tiered leakage controls by province; (ii) a probabilistic mechanism for new-venture formation induced by local liquidity density; and (iii) fiscal recapture via VAT. We combine a short-run New Keynesian (NK) backbone with a provincial multiplier block and a Markov-chain simulator for spending propagation across tiers. Closed-form multipliers, VAT yields, and venture-formation elasticities are derived; numerical recipes are provided in the appendices.
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