{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp03_full320_20260801","cell_id":"deadweight_loss_reduction__library_information_science","trajectory_id":"R","attempt_index":0,"archetype_slug":"deadweight_loss_reduction","domain_slug":"library_information_science","decision":"CANDIDATE","problem_id":"overdue_fine_access_exclusion","causal_lever_id":"risk_tiered_overdue_sanction_redesign","proposal":{"problem":"Daily overdue fines and fine-triggered account blocks can exclude otherwise eligible patrons from borrowing even after low-risk materials are returned, potentially destroying access value beyond what is necessary to protect timely return and shared collection availability.","actors_substrate":["Patrons subject to fines or borrowing blocks","Patrons waiting for circulating materials","Circulation staff and library administrators","Library board or other policy authority","Public or institutional funders"],"observable_state":"Accounts blocked by fine thresholds; patrons cease or reduce borrowing after charges accrue; staff repeatedly waive or negotiate small fines; and returned, replaceable materials generate continuing access restrictions. These patterns and their magnitude are HYPOTHESIS until measured locally.","consequence":"Potentially beneficial use of an already funded collection is forgone, with burdens plausibly concentrated among patrons least able to absorb monetary penalties, while some fine revenue and return incentives are preserved.","affected_objective":"Increase equitable, successful use of circulating collections without increasing damaging lateness, loss, replacement cost, or waiting time for other patrons.","structural_mapping":[{"archetype_element":"Value-blocking wedge","domain_realization":"An overdue charge and balance threshold convert lateness into loss of borrowing eligibility after the marginal protective value of the sanction may have declined.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Blocked beneficial activity","domain_realization":"An eligible patron forgoes borrowing available material that the library exists to circulate.","claim_kind":"INFERENCE"},{"archetype_element":"Protected purpose","domain_realization":"Due dates and proportionate sanctions preserve timely return, collection availability, and fair access for waiting patrons.","claim_kind":"INFERENCE"},{"archetype_element":"Avoidable distortion","domain_realization":"Small accumulating fines or continuing blocks after return may deter access more than they improve return behavior.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Incidence","domain_realization":"The exclusion burden may fall disproportionately on low-income patrons, while delayed-return costs fall on patrons waiting for items.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Bounded redesign","domain_realization":"A pilot replaces daily fines for eligible low-risk items with reminders, automatic renewal where no hold exists, post-grace suspension tied to item return, and replacement billing for presumed loss.","claim_kind":"HYPOTHESIS"}],"component_map":[{"component":"Distortion Map","status":"direct","domain_realization":"Trace due date, daily charge, balance threshold, account block, item return, and restored eligibility."},{"component":"Protected Constraint Safeguard","status":"direct","domain_realization":"Retain due dates, hold-sensitive renewal limits, return-triggered suspension, and replacement recovery for loss."},{"component":"Surplus Estimate","status":"adapted","domain_realization":"Estimate recovered borrowing, successful checkouts, staff time, and patron access alongside added waits, losses, and foregone revenue."},{"component":"Affected-Party Incidence Map","status":"direct","domain_realization":"Compare fined patrons, waiting patrons, staff, funders, and patrons needing scarce items."},{"component":"Redesign Lever","status":"direct","domain_realization":"Replace daily fines on a bounded class with risk-tiered, return-linked sanctions."},{"component":"Distributional Review","status":"direct","domain_realization":"Disaggregate access restoration and adverse availability effects by patron group without treating aggregate circulation as sufficient."},{"component":"Behavioral Response Model","status":"direct","domain_realization":"Predict returns, renewals, strategic delay, borrowing demand, hold queues, loss, and staff overrides."},{"component":"Implementation Boundary","status":"direct","domain_realization":"Limit the pilot to adult circulating, replaceable, library-owned items at selected branches and exclude special collections and contract-controlled materials."},{"component":"Monitoring and Rebound Check","status":"direct","domain_realization":"Track return latency, overdue tails, losses, hold waits, blocks, borrowing, complaints, overrides, and group-level incidence."},{"component":"Rollback or Adjustment Rule","status":"direct","domain_realization":"Restore or tighten sanctions if predefined availability, loss, or equity limits are breached."},{"component":"Cost–Benefit Assessment Frame","status":"direct","domain_realization":"Compare access and administrative gains with waiting harm, replacement expense, transition cost, and revenue effects."},{"component":"Price-Wedge Diagnostic","status":"adapted","domain_realization":"Test whether the monetary penalty changes behavior proportionately or primarily blocks later access."},{"component":"Friction Source Breakdown","status":"direct","domain_realization":"Separate the fine itself from notification failures, payment difficulty, staff discretion, renewal rules, and genuine item scarcity."},{"component":"Compensating Adjustment Plan","status":"adapted","domain_realization":"Replace lost protection with reminders and return-linked suspension; address material fine-revenue dependence explicitly rather than assuming it away."},{"component":"Legitimacy and Authority Review","status":"direct","domain_realization":"Confirm policy, fiscal, legal, labor, privacy, and board authority before changing sanctions."},{"component":"Sensitivity Analysis","status":"direct","domain_realization":"Vary the assumed value of a checkout, fine deterrence, loss cost, waiting harm, and revenue dependence."},{"component":"Pilot or Sunset Path","status":"direct","domain_realization":"Run a time-limited branch-level pilot that expires unless authorized evidence supports continuation."}],"mechanism_dispositions":[{"slug":"congestion_or_capacity_pricing_adjustment","disposition":"incompatible","contribution_type":"NONE","adaptation_or_rejection":"Peak-load pricing would monetize access and does not address an overdue-debt exclusion wedge.","counterfactual_removal":"Removal does not change the proposal."},{"slug":"cost_benefit_assessment_protocol","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Compares recovered access with availability harm, loss, administration, and revenue under uncertain valuations.","counterfactual_removal":"Without it, the proposal could mistake higher circulation or lower cost for net benefit."},{"slug":"distortion_reduction_review","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Separates avoidable monetary exclusion from legitimate return and availability protection.","counterfactual_removal":"Without it, there is no defensible basis for treating the fine as a repairable wedge."},{"slug":"impact_assessment_table","disposition":"selected_supporting","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Records effects and halt signals separately for blocked patrons, waiting patrons, staff, and funders.","counterfactual_removal":"Aggregate results could conceal concentrated access or waiting harms."},{"slug":"matching_improvement_program","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"The primary failure is eligibility exclusion, not inability to discover or pair patrons with materials.","counterfactual_removal":"Removal does not change the causal chain."},{"slug":"permit_or_approval_streamlining","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Payment and waiver processes may be cumbersome, but faster processing leaves the sanction wedge intact.","counterfactual_removal":"Removal does not change the proposed policy redesign."},{"slug":"price_control_redesign","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"An overdue penalty is not primarily a cap, floor, or subsidy governing exchange price.","counterfactual_removal":"Removal does not affect viability."},{"slug":"quota_or_allocation_rule_review","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Due dates allocate time indirectly, but the target is the monetary-debt block rather than a quota or assignment formula.","counterfactual_removal":"Removal leaves the targeted lever unchanged."},{"slug":"regulatory_simplification_pilot","disposition":"selected_load_bearing","contribution_type":"TEST_DESIGN","adaptation_or_rejection":"Adapted from regulation to a walled-off circulation-policy pilot with protected-outcome monitoring and automatic expiry.","counterfactual_removal":"The change would lack the bounded, reversible evidence gate needed before broader adoption."},{"slug":"sunset_clause_review","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Its expiry function is already supplied by the selected pilot; a separate standing-rule sunset is unnecessary for the first test.","counterfactual_removal":"The pilot retains its automatic expiry."},{"slug":"tariff_fee_or_toll_redesign","disposition":"selected_load_bearing","contribution_type":"OPERATIONAL","adaptation_or_rejection":"Adapted to decompose the overdue charge into return incentive, cost recovery, revenue, and legacy practice, retaining only justified functions through less exclusionary instruments.","counterfactual_removal":"Without this mechanism, the diagnosis would not produce a specific sanction redesign."}],"causal_chain":["Daily fines and balance thresholds create a monetary wedge between eligibility and collection use.","The wedge may continue after the item is returned or exceed its marginal contribution to timely return.","Affected patrons reduce borrowing or remain blocked, leaving funded access opportunities unrealized.","Risk-tiered reminders, renewals, return-linked suspension, and replacement billing preserve availability protection with less monetary exclusion.","A bounded pilot tests whether restored access rises without unacceptable lateness, loss, waiting, revenue, or distributional harm."],"baseline":"Continue daily overdue fines, threshold-based account blocks, case-by-case staff waivers, and ordinary replacement billing.","nearest_rival":"Keep the fine schedule but reduce transaction costs through clearer notices, easier payment, and faster waiver processing; this improves administration without testing whether the fine itself is excessive.","authority_safety":{"affected_parties":["Patrons currently fined or blocked","Patrons waiting for overdue items","Circulation staff","Library funders and governing body"],"decision_authority":"The library board or duly delegated director, subject to applicable fiscal, legal, labor, privacy, and consortium constraints.","authorized_first_step":"Authorize a 12-week pilot at one or two branches for adult, replaceable, library-owned circulating items; pre-register matched baseline measures and halt thresholds before enrolling accounts.","excluded_actions":["Permanent system-wide fine abolition","Removal of due dates or hold protections","Waiver of replacement charges for lost or damaged items","Inclusion of special collections, equipment, interlibrary-loan, or vendor-controlled materials","Use of protected patron attributes to vary individual sanctions"],"halt_rollback":"Pause enrollment and restore the prior schedule if loss, extreme-overdue rate, median hold wait, or a pre-specified group-level access disparity crosses its approved bound for two review periods; investigate and either narrow, adjust, or terminate the pilot."}},"negative_tests":{"strongest_counterevidence":"Local records could show that fines materially accelerate returns, that debt blocks rarely prevent borrowing, and that removing daily fines increases long-tail lateness or loss enough to reduce access for waiting patrons.","analogy_break":"Library lending is a public-service allocation system, not an ordinary mutually beneficial market exchange: scarcity, stewardship, privacy, and equitable access are legitimate constraints, and circulation counts do not measure all protected value.","failure_condition":"The candidate is a poor fit if the apparent wedge is mainly real item scarcity, notification or payment friction, or an intentional equitable-allocation rule for which no less-distortive safeguard exists.","problem_falsifier":"The diagnosed problem is falsified if measured fine-triggered blocks do not materially reduce subsequent borrowing or access among otherwise eligible patrons, or if virtually all blocked balances concern unreturned or damaged items requiring genuine cost recovery.","intervention_falsifier":"The intervention is falsified if, relative to a credible baseline, it does not improve successful access or reduces it through larger hold waits, extreme lateness, loss, staff burden, fiscal harm, or distributional harm beyond pre-specified bounds.","risks":["Longer overdue periods reduce availability for waiting patrons.","Replacement costs or lost fine revenue impair collection services.","Strategic delay increases when daily penalties disappear.","Aggregate access gains conceal unequal waiting or loss burdens.","Staff discretion or pilot eligibility becomes inconsistent or stigmatizing.","Short pilot duration misses delayed loss and revenue effects."]},"null_rationale":null,"classification":{"candidate_kind":"MECHANISM_COMPOSITION","prior_art_status":"UNSEARCHED","evidence_maturity":"HYPOTHESIS"},"revision_change_log":{"revision_kind":"ORIGINAL","prior_problem_id":null,"prior_causal_lever_id":null,"problem_changed":false,"causal_lever_changed":false,"conceptual_changes":[],"operational_changes":[],"repairs_addressed":[]},"confidence":0.78,"generator_notes":"Closed-book structural inference from the supplied packet. Domain-specific prevalence, effect sizes, legal authority, and distributional effects remain unverified hypotheses."}