{"id":"https://openalex.org/W2008003532","doi":"https://doi.org/10.1086/255721","title":"Farm-Making Costs and the \"Safety Valve\": 1850-60","display_name":"Farm-Making Costs and the \"Safety Valve\": 1850-60","publication_year":1941,"publication_date":"1941-06-01","ids":{"openalex":"https://openalex.org/W2008003532","doi":"https://doi.org/10.1086/255721","mag":"2008003532"},"language":"en","primary_location":{"id":"doi:10.1086/255721","doi":"https://doi.org/10.1086/255721","is_oa":false,"landing_page_url":"https://doi.org/10.1086/255721","pdf_url":null,"source":{"id":"https://openalex.org/S95323914","display_name":"Journal of Political Economy","issn_l":"0022-3808","issn":["0022-3808","1537-534X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-a-star","anvur-class-a","anvur-scientific","cwts-core","fnege-1-star","ft50","jufo-3","ki-jl-2","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315672","host_organization_name":"University of Chicago Press","host_organization_lineage":["https://openalex.org/P4310315672","https://openalex.org/P4310315690"],"host_organization_lineage_names":["University of Chicago Press","University of Chicago"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Political Economy","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5057573311","display_name":"Clarence H. Danhof","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Clarence H. Danhof","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5057573311"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":8.9647,"has_fulltext":false,"cited_by_count":27,"citation_normalized_percentile":{"value":0.96452037,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"49","issue":"3","first_page":"317","last_page":"359"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11805","display_name":"Agricultural economics and policies","score":0.5390999913215637,"subfield":{"id":"https://openalex.org/subfields/3311","display_name":"Safety Research"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11805","display_name":"Agricultural economics and policies","score":0.5390999913215637,"subfield":{"id":"https://openalex.org/subfields/3311","display_name":"Safety Research"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10605","display_name":"Historical Economic and Social Studies","score":0.4408999979496002,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11789","display_name":"Land Rights and Reforms","score":0.002199999988079071,"subfield":{"id":"https://openalex.org/subfields/1111","display_name":"Soil Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/safety-valves","display_name":"safety valves","score":0.6660000085830688},{"id":"https://openalex.org/keywords/agricultural-prices","display_name":"agricultural prices","score":0.34599998593330383},{"id":"https://openalex.org/keywords/farm-income","display_name":"farm income","score":0.4009999930858612},{"id":"https://openalex.org/keywords/19th-century","display_name":"19th century","score":0.578000009059906}],"concepts":[{"id":"https://openalex.org/C2778571376","wikidata":"https://www.wikidata.org/wiki/Q1355821","display_name":"Frontier","level":2,"score":0.6807565689086914},{"id":"https://openalex.org/C157140304","wikidata":"https://www.wikidata.org/wiki/Q396108","display_name":"Agrarian society","level":3,"score":0.5670986175537109},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.5198336243629456},{"id":"https://openalex.org/C184386139","wikidata":"https://www.wikidata.org/wiki/Q52090","display_name":"Bourgeoisie","level":3,"score":0.4210907518863678},{"id":"https://openalex.org/C514928085","wikidata":"https://www.wikidata.org/wiki/Q6206","display_name":"Capitalism","level":3,"score":0.4193160831928253},{"id":"https://openalex.org/C6303427","wikidata":"https://www.wikidata.org/wiki/Q47398","display_name":"Economic history","level":1,"score":0.412927508354187},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.37190598249435425},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.3633986711502075},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.33749836683273315},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.2703321576118469},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.17869946360588074}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1086/255721","doi":"https://doi.org/10.1086/255721","is_oa":false,"landing_page_url":"https://doi.org/10.1086/255721","pdf_url":null,"source":{"id":"https://openalex.org/S95323914","display_name":"Journal of Political Economy","issn_l":"0022-3808","issn":["0022-3808","1537-534X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-a-star","anvur-class-a","anvur-scientific","cwts-core","fnege-1-star","ft50","jufo-3","ki-jl-2","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315672","host_organization_name":"University of Chicago Press","host_organization_lineage":["https://openalex.org/P4310315672","https://openalex.org/P4310315690"],"host_organization_lineage_names":["University of Chicago Press","University of Chicago"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Political Economy","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Zero hunger","score":0.40450000762939453,"id":"https://metadata.un.org/sdg/2"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2040224740","https://openalex.org/W2094850332","https://openalex.org/W2295371302","https://openalex.org/W2611892807","https://openalex.org/W2058674778","https://openalex.org/W4250463260","https://openalex.org/W2606848777","https://openalex.org/W1970724346","https://openalex.org/W2087820278","https://openalex.org/W2286743074"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-08-27T14:10:00.468798","created_date":"2016-06-24T00:00:00"}