1{"text": "{\"genre\":\"mixed_theory_empirical\",\"subfield\":\"financial_intermediation_banking\",\"subfield_secondary\":\"structural estimation of asymmetric information in credit markets / macro-finance (credit crunch)\",\"primary_method\":\"structural_estimation\",\"identification\":{\"estimand\":\"Magnitude of the information gap (incumbent lenders' private information) and its contribution to the decline in lending during the 2007-2009 crisis\",\"strategy\":\"Two-stage discrete-choice model of renewal and new relationship formation. Bank lending-capacity shocks separate private from common information. Renewers serve as a benchmark, and the second stage uses non-renewing firms while correcting for selection on common information.\",\"key_assumptions\":[\"Bank shocks to lending ability are unrelated to unobservable borrower characteristics\",\"Distribution of borrower unobservables and the lending rule are common across lenders up to a matching error orthogonal to the previous lender's shock\"],\"threats_addressed\":[\"Confounding of private information with common information unobservable to the econometrician\",\"Mechanical selection of non-renewing firms on common information\",\"Matching errors (Monte Carlo)\"],\"causal_language_strength\":3,\"uses_causal_claim\":true},\"abstract_moves\":{\"question\":{\"present\":true,\"sentence_index\":0},\"gap\":{\"present\":false,\"sentence_index\":-1},\"method\":{\"present\":true,\"sentence_index\":2},\"results\":{\"present\":true,\"sentence_index\":3},\"magnitude\":{\"present\":false,\"sentence_index\":-1},\"contribution\":{\"present\":true,\"sentence_index\":2}},\"introduction\":{\"moves\":[{\"paragraph_index\":0,\"move\":\"motivation\"},{\"paragraph_index\":0,\"move\":\"policy_or_broader_implication\"},{\"paragraph_index\":1,\"move\":\"contribution_statement\"},{\"paragraph_index\":1,\"move\":\"preview_of_approach\"},{\"paragraph_index\":1,\"move\":\"preview_of_results\"},{\"paragraph_index\":2,\"move\":\"preview_of_approach\"},{\"paragraph_index\":3,\"move\":\"mechanism_or_theory_sketch\"},{\"paragraph_index\":4,\"move\":\"identification_defense\"},{\"paragraph_index\":5,\"move\":\"preview_of_results\"},{\"paragraph_index\":5,\"move\":\"tension_or_puzzle\"},{\"paragraph_index\":6,\"move\":\"related_literature_positioning\"},{\"paragraph_index\":7,\"move\":\"related_literature_positioning\"},{\"paragraph_index\":8,\"move\":\"related_literature_positioning\"}],\"contribution_paragraph_index\":1,\"contribution_types\":[\"new_evidence\",\"new_identification\",\"new_method\",\"new_theory_or_model\"],\"roadmap_present\":false,\"literature_positioning_location\":\"inside_introduction\"},\"section_roles\":[{\"idx\":0,\"role\":\"introduction\"},{\"idx\":1,\"role\":\"data\"},{\"idx\":2,\"role\":\"data\"},{\"idx\":3,\"role\":\"theory\"},{\"idx\":4,\"role\":\"results\"},{\"idx\":5,\"role\":\"conclusion\"},{\"idx\":6,\"role\":\"appendix\"}],\"results_presentation\":{\"economic_significance_discussed\":true,\"statistical_significance_language\":\"confidence_intervals\",\"magnitude_statements_in_intro\":false},\"robustness\":{\"location\":\"mixed\",\"types\":[\"subsample\",\"alternative_measure\",\"other\"]},\"tables\":{\"convention_notes\":\"Probit tables report marginal effects ×100. Second-stage estimates use nonlinear least squares on non-renewers with bootstrapped 95% CIs. Notes define renewal via lead-lender overlap, the crisis-exposure construction, and sample restrictions. Counterfactual lending is computed with the information gap set to zero.\",\"units_stated_in_notes\":true,\"standard_errors_description\":\"bootstrap\",\"figures\":{\"uncertainty_shown\":\"unclear\"},\"conclusion\":{\"bounded_claims\":true,\"policy_implications\":false,\"open_questions\":false,\"restates_contribution\":true},\"hedging\":{\"level\":\"moderate\",\"typical_devices\":[\"'appears to be' qualifiers on the main finding\",\"'unlikely to explain'\",\"explicit statement of maintained assumptions\",\"'a likely friction' for alternative mechanisms\",\"confining the conclusion to the syndicated loan market\"]},\"claim_evidence\":[{\"claim\":\"Lending relationships in the syndicated market are very sticky; few firms form new relationships relative to renewals\",\"evidence_type\":\"descriptive_statistic\",\"evidence_ref\":\"Table I\"},{\"claim\":\"Lender crisis exposure lowers renewal probability with the existing lender\",\"evidence_type\":\"table\",\"evidence_ref\":\"Table II\"},{\"claim\":\"Estimated information gap is small\",\"evidence_type\":\"table\",\"evidence_ref\":\"Table III\"},{\"claim\":\"Information gap explains little of the aggregate post-crisis lending decline\",\"evidence_type\":\"table\",\"evidence_ref\":\"Table IV\"},{\"claim\":\"Naive models ignoring common information greatly overstate the friction's effect\",\"evidence_type\":\"table\",\"evidence_ref\":\"Table V\"},{\"claim\":\"Reduced-form patterns consistent with the inference hypothesis are mostly driven by common information\",\"evidence_type\":\"table\",\"evidence_ref\":\"Table AIII; Figure 6\"},{\"claim\":\"Bank shocks matter for firm borrowing in this market\",\"evidence_type\":\"prior_literature\",\"evidence_ref\":\"Chodorow-Reich (2014)\"}]},\"structural_summary\":\"The introduction motivates the work with relationship stickiness and its aggregate fragility, then states the main contribution: a first direct estimate of the information gap. It frames the key challenge of separating private from common information and sketches the comparison with renewers and a three-layer-information discrete-choice model. Identifying assumptions are stated, followed by a negative quantitative result contrasted with the prevailing view, and an alternative covenant channel is proposed. Related literature is discussed inside the introduction. The body moves from data and bank-shock measurement to the model and identification, then to two-stage estimation, aggregate counterfactuals, bias from naive models, policy, and generalizability. A short conclusion restates the method and finding.\",\"writing_profile_keywords\":[\"structural discrete choice\",\"adverse selection\",\"identification of private vs common information\",\"negative result\",\"bank shocks\",\"first-person singular\",\"quantification\",\"syndicated loans\"],\"confidence\":0.8,\"notes\":\"Single-authored. The main finding is a null/small-magnitude result. Robustness via subsamples (Table AIV), alternative bank shocks (Fig A2) and Monte Carlo (Fig A3) sits in the appendix. Section 2 heading appears to be a parsing fragment of Section I.\"}", "json": {"genre": "mixed_theory_empirical", "subfield": "financial_intermediation_banking", "subfield_secondary": "structural estimation of asymmetric information in credit markets / macro-finance (credit crunch)", "primary_method": "structural_estimation", "identification": {"estimand": "Magnitude of the information gap (incumbent lenders' private information) and its contribution to the decline in lending during the 2007-2009 crisis", "strategy": "Two-stage discrete-choice model of renewal and new relationship formation. Bank lending-capacity shocks separate private from common information. Renewers serve as a benchmark, and the second stage uses non-renewing firms while correcting for selection on common information.", "key_assumptions": ["Bank shocks to lending ability are unrelated to unobservable borrower characteristics", "Distribution of borrower unobservables and the lending rule are common across lenders up to a matching error orthogonal to the previous lender's shock"], "threats_addressed": ["Confounding of private information with common information unobservable to the econometrician", "Mechanical selection of non-renewing firms on common information", "Matching errors (Monte Carlo)"], "causal_language_strength": 3, "uses_causal_claim": true}, "abstract_moves": {"question": {"present": true, "sentence_index": 0}, "gap": {"present": false, "sentence_index": -1}, "method": {"present": true, "sentence_index": 2}, "results": {"present": true, "sentence_index": 3}, "magnitude": {"present": false, "sentence_index": -1}, "contribution": {"present": true, "sentence_index": 2}}, "introduction": {"moves": [{"paragraph_index": 0, "move": "motivation"}, {"paragraph_index": 0, "move": "policy_or_broader_implication"}, {"paragraph_index": 1, "move": "contribution_statement"}, {"paragraph_index": 1, "move": "preview_of_approach"}, {"paragraph_index": 1, "move": "preview_of_results"}, {"paragraph_index": 2, "move": "preview_of_approach"}, {"paragraph_index": 3, "move": "mechanism_or_theory_sketch"}, {"paragraph_index": 4, "move": "identification_defense"}, {"paragraph_index": 5, "move": "preview_of_results"}, {"paragraph_index": 5, "move": "tension_or_puzzle"}, {"paragraph_index": 6, "move": "related_literature_positioning"}, {"paragraph_index": 7, "move": "related_literature_positioning"}, {"paragraph_index": 8, "move": "related_literature_positioning"}], "contribution_paragraph_index": 1, "contribution_types": ["new_evidence", "new_identification", "new_method", "new_theory_or_model"], "roadmap_present": false, "literature_positioning_location": "inside_introduction"}, "section_roles": [{"idx": 0, "role": "introduction"}, {"idx": 1, "role": "data"}, {"idx": 2, "role": "data"}, {"idx": 3, "role": "theory"}, {"idx": 4, "role": "results"}, {"idx": 5, "role": "conclusion"}, {"idx": 6, "role": "appendix"}], "results_presentation": {"economic_significance_discussed": true, "statistical_significance_language": "confidence_intervals", "magnitude_statements_in_intro": false}, "robustness": {"location": "mixed", "types": ["subsample", "alternative_measure", "other"]}, "tables": {"convention_notes": "Probit tables report marginal effects ×100. 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It frames the key challenge of separating private from common information and sketches the comparison with renewers and a three-layer-information discrete-choice model. Identifying assumptions are stated, followed by a negative quantitative result contrasted with the prevailing view, and an alternative covenant channel is proposed. Related literature is discussed inside the introduction. The body moves from data and bank-shock measurement to the model and identification, then to two-stage estimation, aggregate counterfactuals, bias from naive models, policy, and generalizability. A short conclusion restates the method and finding.", "writing_profile_keywords": ["structural discrete choice", "adverse selection", "identification of private vs common information", "negative result", "bank shocks", "first-person singular", "quantification", "syndicated loans"], "confidence": 0.8, "notes": "Single-authored. The main finding is a null/small-magnitude result. Robustness via subsamples (Table AIV), alternative bank shocks (Fig A2) and Monte Carlo (Fig A3) sits in the appendix. Section 2 heading appears to be a parsing fragment of Section I."}, "model": "claude-opus-5-5", "stop_reason": "end_turn", "latency_s": 19.23, "usage": {"input": 7173, "output": 2263, "cache_read": 3968, "cache_write": 0}, "cost_usd": 0.074746, "request_id": "req_011CggqtCrPoWtU55iEzQ87w", "cached": false, "ts": "2026-11-03T23:14:24+00:00", "effort": "medium"}