{"id":"https://openalex.org/W4415641307","doi":"https://doi.org/10.1016/j.mathsocsci.2025.102472","title":"Basic research and market concentration","display_name":"Basic research and market concentration","publication_year":2025,"publication_date":"2025-10-29","ids":{"openalex":"https://openalex.org/W4415641307","doi":"https://doi.org/10.1016/j.mathsocsci.2025.102472"},"language":"en","primary_location":{"id":"doi:10.1016/j.mathsocsci.2025.102472","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.mathsocsci.2025.102472","pdf_url":null,"source":{"id":"https://openalex.org/S149064342","display_name":"Mathematical Social Sciences","issn_l":"0165-4896","issn":["0165-4896","1879-3118"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Mathematical Social Sciences","raw_type":"journal-article"},"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/A5004874316","display_name":"K. Belkadhi","orcid":"https://orcid.org/0000-0002-8779-782X"},"institutions":[{"id":"https://openalex.org/I3131031036","display_name":"Mediterranean School of Business","ror":"https://ror.org/02fyv5292","country_code":"TN","type":"education","lineage":["https://openalex.org/I3131031036"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"Khaled Belkadhi","raw_affiliation_strings":["South Mediterranean University, Mediterranean School of Business, Tunisia"],"raw_orcid":"https://orcid.org/0000-0002-8779-782X","affiliations":[{"raw_affiliation_string":"South Mediterranean University, Mediterranean School of Business, Tunisia","institution_ids":["https://openalex.org/I3131031036"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007363158","display_name":"Hend Ghazzai","orcid":"https://orcid.org/0000-0001-6990-5287"},"institutions":[{"id":"https://openalex.org/I179097149","display_name":"University of Carthage","ror":"https://ror.org/057x6za15","country_code":"TN","type":"education","lineage":["https://openalex.org/I179097149"]},{"id":"https://openalex.org/I3131031036","display_name":"Mediterranean School of Business","ror":"https://ror.org/02fyv5292","country_code":"TN","type":"education","lineage":["https://openalex.org/I3131031036"]}],"countries":["TN"],"is_corresponding":true,"raw_author_name":"Hend Ghazzai","raw_affiliation_strings":["L.R. MASE (LR21ES21)-ESSAI, Universit\u00e9 de Carthage, Tunisia","South Mediterranean University, Mediterranean School of Business, Tunisia"],"raw_orcid":"https://orcid.org/0000-0001-6990-5287","affiliations":[{"raw_affiliation_string":"L.R. MASE (LR21ES21)-ESSAI, Universit\u00e9 de Carthage, Tunisia","institution_ids":["https://openalex.org/I179097149"]},{"raw_affiliation_string":"South Mediterranean University, Mediterranean School of Business, Tunisia","institution_ids":["https://openalex.org/I3131031036"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053938817","display_name":"Rim Lahmandi\u2010Ayed","orcid":"https://orcid.org/0000-0002-6427-4778"},"institutions":[{"id":"https://openalex.org/I179097149","display_name":"University of Carthage","ror":"https://ror.org/057x6za15","country_code":"TN","type":"education","lineage":["https://openalex.org/I179097149"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"Rim Lahmandi-Ayed","raw_affiliation_strings":["University of Carthage, ESSAI, L.R. MASE (LR21ES21) & CUT, Rennes School of Business, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Carthage, ESSAI, L.R. MASE (LR21ES21) & CUT, Rennes School of Business, France","institution_ids":["https://openalex.org/I179097149"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5007363158"],"corresponding_institution_ids":["https://openalex.org/I179097149","https://openalex.org/I3131031036"],"apc_list":{"value":2720,"currency":"USD","value_usd":2720},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.38562485,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"138","issue":null,"first_page":"102472","last_page":"102472"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11043","display_name":"Merger and Competition Analysis","score":0.12300000339746475,"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"}},"topics":[{"id":"https://openalex.org/T11043","display_name":"Merger and Competition Analysis","score":0.12300000339746475,"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/T13387","display_name":"Politics, Economics, and Education Policy","score":0.11630000174045563,"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/T10393","display_name":"Economic Growth and Productivity","score":0.06960000097751617,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/basic-research","display_name":"Basic research","score":0.8438000082969666},{"id":"https://openalex.org/keywords/investment","display_name":"Investment (military)","score":0.5679000020027161},{"id":"https://openalex.org/keywords/production","display_name":"Production (economics)","score":0.5521000027656555},{"id":"https://openalex.org/keywords/applied-research","display_name":"Applied research","score":0.43320000171661377},{"id":"https://openalex.org/keywords/multiplicative-function","display_name":"Multiplicative function","score":0.4097999930381775},{"id":"https://openalex.org/keywords/empirical-research","display_name":"Empirical research","score":0.3986000120639801},{"id":"https://openalex.org/keywords/multiplier","display_name":"Multiplier (economics)","score":0.3693999946117401},{"id":"https://openalex.org/keywords/state","display_name":"State (computer science)","score":0.3578999936580658}],"concepts":[{"id":"https://openalex.org/C2986762682","wikidata":"https://www.wikidata.org/wiki/Q964754","display_name":"Basic research","level":2,"score":0.8438000082969666},{"id":"https://openalex.org/C27548731","wikidata":"https://www.wikidata.org/wiki/Q88272","display_name":"Investment (military)","level":3,"score":0.5679000020027161},{"id":"https://openalex.org/C2778348673","wikidata":"https://www.wikidata.org/wiki/Q739302","display_name":"Production (economics)","level":2,"score":0.5521000027656555},{"id":"https://openalex.org/C40700","wikidata":"https://www.wikidata.org/wiki/Q1411783","display_name":"Industrial organization","level":1,"score":0.44110000133514404},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","level":1,"score":0.4343000054359436},{"id":"https://openalex.org/C2777626755","wikidata":"https://www.wikidata.org/wiki/Q28797","display_name":"Applied research","level":2,"score":0.43320000171661377},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.412200003862381},{"id":"https://openalex.org/C42747912","wikidata":"https://www.wikidata.org/wiki/Q1048447","display_name":"Multiplicative function","level":2,"score":0.4097999930381775},{"id":"https://openalex.org/C120936955","wikidata":"https://www.wikidata.org/wiki/Q2155640","display_name":"Empirical research","level":2,"score":0.3986000120639801},{"id":"https://openalex.org/C124584101","wikidata":"https://www.wikidata.org/wiki/Q1053266","display_name":"Multiplier (economics)","level":2,"score":0.3693999946117401},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.3578999936580658},{"id":"https://openalex.org/C3018233652","wikidata":"https://www.wikidata.org/wiki/Q101965","display_name":"Experimental research","level":2,"score":0.3418000042438507},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.3375999927520752},{"id":"https://openalex.org/C3019869117","wikidata":"https://www.wikidata.org/wiki/Q42240","display_name":"Original research","level":2,"score":0.33180001378059387},{"id":"https://openalex.org/C2780428219","wikidata":"https://www.wikidata.org/wiki/Q16952335","display_name":"Cover (algebra)","level":2,"score":0.31450000405311584},{"id":"https://openalex.org/C196777733","wikidata":"https://www.wikidata.org/wiki/Q1550467","display_name":"Basic needs","level":3,"score":0.30250000953674316},{"id":"https://openalex.org/C30772137","wikidata":"https://www.wikidata.org/wiki/Q5164762","display_name":"Consumption (sociology)","level":2,"score":0.29339998960494995},{"id":"https://openalex.org/C2778035492","wikidata":"https://www.wikidata.org/wiki/Q7315176","display_name":"Research program","level":2,"score":0.2919999957084656},{"id":"https://openalex.org/C27564746","wikidata":"https://www.wikidata.org/wiki/Q913709","display_name":"Market research","level":2,"score":0.2703000009059906},{"id":"https://openalex.org/C112758219","wikidata":"https://www.wikidata.org/wiki/Q16038819","display_name":"Duration (music)","level":2,"score":0.25940001010894775},{"id":"https://openalex.org/C165083353","wikidata":"https://www.wikidata.org/wiki/Q282942","display_name":"Returns to scale","level":3,"score":0.25440001487731934},{"id":"https://openalex.org/C68359772","wikidata":"https://www.wikidata.org/wiki/Q185715","display_name":"Opportunity cost","level":2,"score":0.25040000677108765}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.mathsocsci.2025.102472","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.mathsocsci.2025.102472","pdf_url":null,"source":{"id":"https://openalex.org/S149064342","display_name":"Mathematical Social Sciences","issn_l":"0165-4896","issn":["0165-4896","1879-3118"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Mathematical Social Sciences","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1971782430","https://openalex.org/W2005144066","https://openalex.org/W2006621764","https://openalex.org/W2026845129","https://openalex.org/W2048749529","https://openalex.org/W2049891100","https://openalex.org/W2051493397","https://openalex.org/W2121280379","https://openalex.org/W2139988172","https://openalex.org/W2144580129","https://openalex.org/W2159828757","https://openalex.org/W2332004806","https://openalex.org/W2556100680","https://openalex.org/W2743628650","https://openalex.org/W2755053267","https://openalex.org/W2790970274","https://openalex.org/W2795990598","https://openalex.org/W2950745131","https://openalex.org/W2992651003","https://openalex.org/W3009935001","https://openalex.org/W3122105830","https://openalex.org/W3125327005","https://openalex.org/W3125466912","https://openalex.org/W3125980310","https://openalex.org/W3135140931","https://openalex.org/W3210429611","https://openalex.org/W3215709617","https://openalex.org/W4211141187","https://openalex.org/W4307038068","https://openalex.org/W4381890545"],"related_works":[],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-06-14T06:11:07.267592","created_date":"2025-10-29T00:00:00"}