def settlementR0_friction (e : SettlementEconomy) (lambda_B : ℝ) : ℝ := (e.cross_phi_S * (lambda_B * e.cross_S_phi)) / (e.self_phi * e.self_S)
thesis/CESProofs/Applications/SettlementFeedback.lean:112
Paper 7: Settlement Feedback and Monetary Policy in a Mesh Economy