{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:U2QU7R77KLNA7SWE36YKFKXFTC","short_pith_number":"pith:U2QU7R77","schema_version":"1.0","canonical_sha256":"a6a14fc7ff52da0fcac4dfb0a2aae598969902541e10b2c25912a89f715bdc22","source":{"kind":"arxiv","id":"1206.2966","version":2},"attestation_state":"computed","paper":{"title":"Panel Data Models with Nonadditive Unobserved Heterogeneity: Estimation and Inference","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["econ.EM","math.ST","stat.AP","stat.TH"],"primary_cat":"stat.ME","authors_text":"Ivan Fernandez-Val, Joonhwah Lee","submitted_at":"2012-06-13T23:10:58Z","abstract_excerpt":"This paper considers fixed effects estimation and inference in linear and nonlinear panel data models with random coefficients and endogenous regressors. The quantities of interest -- means, variances, and other moments of the random coefficients -- are estimated by cross sectional sample moments of GMM estimators applied separately to the time series of each individual. To deal with the incidental parameter problem introduced by the noise of the within-individual estimators in short panels, we develop bias corrections. These corrections are based on higher-order asymptotic expansions of the G"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1206.2966","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2012-06-13T23:10:58Z","cross_cats_sorted":["econ.EM","math.ST","stat.AP","stat.TH"],"title_canon_sha256":"81cdb51acc8348d7a5988d649f96b463ab148b0f5c141d2742dba64e540980f2","abstract_canon_sha256":"e6ca841100181d08880664980c05863d4f0d89d154fc6b3856cbdd8501a092a6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:26:09.286470Z","signature_b64":"+PM/NHN38282Go+diHzTeZu+dIFLheokVLBcaaoRqgUEPMgFlLdqKa2y/pVoNnVfs2BHtO0tqDktUhJCE9RLBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6a14fc7ff52da0fcac4dfb0a2aae598969902541e10b2c25912a89f715bdc22","last_reissued_at":"2026-05-18T00:26:09.285771Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:26:09.285771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Panel Data Models with Nonadditive Unobserved Heterogeneity: Estimation and Inference","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["econ.EM","math.ST","stat.AP","stat.TH"],"primary_cat":"stat.ME","authors_text":"Ivan Fernandez-Val, Joonhwah Lee","submitted_at":"2012-06-13T23:10:58Z","abstract_excerpt":"This paper considers fixed effects estimation and inference in linear and nonlinear panel data models with random coefficients and endogenous regressors. The quantities of interest -- means, variances, and other moments of the random coefficients -- are estimated by cross sectional sample moments of GMM estimators applied separately to the time series of each individual. To deal with the incidental parameter problem introduced by the noise of the within-individual estimators in short panels, we develop bias corrections. These corrections are based on higher-order asymptotic expansions of the G"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.2966","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1206.2966","created_at":"2026-05-18T00:26:09.285889+00:00"},{"alias_kind":"arxiv_version","alias_value":"1206.2966v2","created_at":"2026-05-18T00:26:09.285889+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.2966","created_at":"2026-05-18T00:26:09.285889+00:00"},{"alias_kind":"pith_short_12","alias_value":"U2QU7R77KLNA","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_16","alias_value":"U2QU7R77KLNA7SWE","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_8","alias_value":"U2QU7R77","created_at":"2026-05-18T12:27:23.164592+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC","json":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC.json","graph_json":"https://pith.science/api/pith-number/U2QU7R77KLNA7SWE36YKFKXFTC/graph.json","events_json":"https://pith.science/api/pith-number/U2QU7R77KLNA7SWE36YKFKXFTC/events.json","paper":"https://pith.science/paper/U2QU7R77"},"agent_actions":{"view_html":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC","download_json":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC.json","view_paper":"https://pith.science/paper/U2QU7R77","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1206.2966&json=true","fetch_graph":"https://pith.science/api/pith-number/U2QU7R77KLNA7SWE36YKFKXFTC/graph.json","fetch_events":"https://pith.science/api/pith-number/U2QU7R77KLNA7SWE36YKFKXFTC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC/action/storage_attestation","attest_author":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC/action/author_attestation","sign_citation":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC/action/citation_signature","submit_replication":"https://pith.science/pith/U2QU7R77KLNA7SWE36YKFKXFTC/action/replication_record"}},"created_at":"2026-05-18T00:26:09.285889+00:00","updated_at":"2026-05-18T00:26:09.285889+00:00"}