{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:L5EYNDXNANZUG2BPPOKFFNXKY3","short_pith_number":"pith:L5EYNDXN","schema_version":"1.0","canonical_sha256":"5f49868eed037343682f7b9452b6eac6c96b5b6dcff647f54d89dcdc6369629d","source":{"kind":"arxiv","id":"1902.02824","version":4},"attestation_state":"computed","paper":{"title":"Technical efficiency and inefficiency: SFA misspecification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"A. Peresetsky, A. Zaytsev, S. Kumbhakar, Y. Shchetynin","submitted_at":"2019-02-07T20:05:42Z","abstract_excerpt":"The effect of external factors $z$ on technical inefficiency ($TI$) in stochastic frontier (SF) production models is often specified through the variance of inefficiency term $u$. In this setup the signs of marginal effects of $z$ on $TI$ and technical efficiency $TE$ identify how one should control $z$ to increase $TI$ or decrease $TE$. We prove that these signs for $TI$ and $TE$ are opposite for typical setups with normally distributed random error $v$ and exponentially or half-normally distributed $u$ for both conditional and unconditional cases.\n  On the other hand, we give an example to s"},"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":"1902.02824","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2019-02-07T20:05:42Z","cross_cats_sorted":[],"title_canon_sha256":"583f65af635569758a17001d03f264dd9d50a33101bb7e4000f561200816872b","abstract_canon_sha256":"c8804d35259fd8eb6dc7ca1e1efcad6def7d151b7a97c35a44a4d25e9010625a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:39:10.212787Z","signature_b64":"Gmbvz93NcqDadV1vF5Tuq7pfrLz9BEY60+PgtgYeB9vI0UMH1UgbhYrTz+Jfty7ziVLfYXoS7y3n9fsmk7c7AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f49868eed037343682f7b9452b6eac6c96b5b6dcff647f54d89dcdc6369629d","last_reissued_at":"2026-07-05T00:39:10.212259Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:39:10.212259Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Technical efficiency and inefficiency: SFA misspecification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"A. Peresetsky, A. Zaytsev, S. Kumbhakar, Y. Shchetynin","submitted_at":"2019-02-07T20:05:42Z","abstract_excerpt":"The effect of external factors $z$ on technical inefficiency ($TI$) in stochastic frontier (SF) production models is often specified through the variance of inefficiency term $u$. In this setup the signs of marginal effects of $z$ on $TI$ and technical efficiency $TE$ identify how one should control $z$ to increase $TI$ or decrease $TE$. We prove that these signs for $TI$ and $TE$ are opposite for typical setups with normally distributed random error $v$ and exponentially or half-normally distributed $u$ for both conditional and unconditional cases.\n  On the other hand, we give an example to s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02824","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1902.02824/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1902.02824","created_at":"2026-07-05T00:39:10.212326+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.02824v4","created_at":"2026-07-05T00:39:10.212326+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02824","created_at":"2026-07-05T00:39:10.212326+00:00"},{"alias_kind":"pith_short_12","alias_value":"L5EYNDXNANZU","created_at":"2026-07-05T00:39:10.212326+00:00"},{"alias_kind":"pith_short_16","alias_value":"L5EYNDXNANZUG2BP","created_at":"2026-07-05T00:39:10.212326+00:00"},{"alias_kind":"pith_short_8","alias_value":"L5EYNDXN","created_at":"2026-07-05T00:39:10.212326+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/L5EYNDXNANZUG2BPPOKFFNXKY3","json":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3.json","graph_json":"https://pith.science/api/pith-number/L5EYNDXNANZUG2BPPOKFFNXKY3/graph.json","events_json":"https://pith.science/api/pith-number/L5EYNDXNANZUG2BPPOKFFNXKY3/events.json","paper":"https://pith.science/paper/L5EYNDXN"},"agent_actions":{"view_html":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3","download_json":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3.json","view_paper":"https://pith.science/paper/L5EYNDXN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.02824&json=true","fetch_graph":"https://pith.science/api/pith-number/L5EYNDXNANZUG2BPPOKFFNXKY3/graph.json","fetch_events":"https://pith.science/api/pith-number/L5EYNDXNANZUG2BPPOKFFNXKY3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3/action/storage_attestation","attest_author":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3/action/author_attestation","sign_citation":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3/action/citation_signature","submit_replication":"https://pith.science/pith/L5EYNDXNANZUG2BPPOKFFNXKY3/action/replication_record"}},"created_at":"2026-07-05T00:39:10.212326+00:00","updated_at":"2026-07-05T00:39:10.212326+00:00"}