def discretionaryGain (c phi_prev sigma_old sigma_new delta : ℝ) : ℝ := c * (phi_prev / sigma_new) * sigma_new * delta ^ 2 - c * (phi_prev / sigma_old) * sigma_old * delta ^ 2
thesis/CESProofs/Applications/TimeInconsistency.lean:36
Time Inconsistency Resolution via Upstream Reform (Gap 11)