{"id":"https://openalex.org/W3422056","doi":"https://doi.org/10.5555/2484920.2485027","title":"Mergers and collusion in all-pay auctions and crowdsourcing contests","display_name":"Mergers and collusion in all-pay auctions and crowdsourcing contests","publication_year":2013,"publication_date":"2013-05-06","ids":{"openalex":"https://openalex.org/W3422056","doi":"https://doi.org/10.5555/2484920.2485027","mag":"3422056"},"language":"en","primary_location":{"id":"pmh:oai:CiteSeerX.psu:10.1.1.723.8946","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.723.8946","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cs.toronto.edu/%7Eomerl/papers/aamas13b.pdf","raw_type":"text"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"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/A5076014167","display_name":"Omer Lev","orcid":"https://orcid.org/0000-0001-7481-9439","observed_orcids":["https://orcid.org/0000-0001-7481-9439"]},"institutions":[{"id":"https://openalex.org/I197251160","display_name":"Hebrew University of Jerusalem","ror":"https://ror.org/03qxff017","country_code":"IL","type":"education","lineage":["https://openalex.org/I197251160"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Omer Lev","raw_affiliation_strings":["The Hebrew University of Jerusalem , Jerusalem , Israel"],"raw_orcid":"https://orcid.org/0000-0001-7481-9439","affiliations":[{"raw_affiliation_string":"The Hebrew University of Jerusalem , Jerusalem , Israel","institution_ids":["https://openalex.org/I197251160"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065622718","display_name":"Maria Polukarov","orcid":"https://orcid.org/0000-0002-7421-3012","observed_orcids":["https://orcid.org/0000-0002-7421-3012"]},"institutions":[{"id":"https://openalex.org/I43439940","display_name":"University of Southampton","ror":"https://ror.org/01ryk1543","country_code":"GB","type":"education","lineage":["https://openalex.org/I43439940"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Maria Polukarov","raw_affiliation_strings":["University of Southampton, Southampton, United Kingdom"],"raw_orcid":"https://orcid.org/0000-0002-7421-3012","affiliations":[{"raw_affiliation_string":"University of Southampton, Southampton, United Kingdom","institution_ids":["https://openalex.org/I43439940"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062949033","display_name":"Yoram Bachrach","orcid":"https://orcid.org/0000-0002-4382-7636","observed_orcids":["https://orcid.org/0000-0002-4382-7636"]},"institutions":[{"id":"https://openalex.org/I4210164937","display_name":"Microsoft Research (United Kingdom)","ror":"https://ror.org/05k87vq12","country_code":"GB","type":"company","lineage":["https://openalex.org/I1290206253","https://openalex.org/I4210164937"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Yoram Bachrach","raw_affiliation_strings":["Microsoft Research, Cambridge, United Kingdom ("],"raw_orcid":"https://orcid.org/0000-0002-4382-7636","affiliations":[{"raw_affiliation_string":"Microsoft Research, Cambridge, United Kingdom (","institution_ids":["https://openalex.org/I4210164937"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091010876","display_name":"Jeffrey S. Rosenschein","orcid":"https://orcid.org/0000-0002-4042-9739","observed_orcids":["https://orcid.org/0000-0002-4042-9739"]},"institutions":[{"id":"https://openalex.org/I197251160","display_name":"Hebrew University of Jerusalem","ror":"https://ror.org/03qxff017","country_code":"IL","type":"education","lineage":["https://openalex.org/I197251160"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Jeffrey S. Rosenschein","raw_affiliation_strings":["The Hebrew University of Jerusalem , Jerusalem , Israel"],"raw_orcid":"https://orcid.org/0000-0002-4042-9739","affiliations":[{"raw_affiliation_string":"The Hebrew University of Jerusalem , Jerusalem , Israel","institution_ids":["https://openalex.org/I197251160"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.1297,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.86467034,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"675","last_page":"682"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11182","display_name":"Auction Theory and Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11182","display_name":"Auction Theory and Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10991","display_name":"Game Theory and Voting Systems","score":0.0,"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/T11031","display_name":"Game Theory and Applications","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mergers","display_name":"mergers","score":0.7839999794960022},{"id":"https://openalex.org/keywords/collusion","display_name":"collusion","score":0.9959999918937683},{"id":"https://openalex.org/keywords/all-pay-auctions","display_name":"all-pay auctions","score":0.9049999713897705},{"id":"https://openalex.org/keywords/crowdsourcing-contests","display_name":"crowdsourcing contests","score":0.9940000176429749},{"id":"https://openalex.org/keywords/social-welfare-welfare-economics","display_name":"social welfare (welfare economics)","score":0.8009999990463257},{"id":"https://openalex.org/keywords/principal-agent-problem","display_name":"principal-agent problem","score":0.3199999928474426}],"concepts":[{"id":"https://openalex.org/C2781198186","wikidata":"https://www.wikidata.org/wiki/Q701521","display_name":"Collusion","level":2,"score":0.9505943059921265},{"id":"https://openalex.org/C62230096","wikidata":"https://www.wikidata.org/wiki/Q275969","display_name":"Crowdsourcing","level":2,"score":0.8526965379714966},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","level":1,"score":0.7196567058563232},{"id":"https://openalex.org/C163239763","wikidata":"https://www.wikidata.org/wiki/Q5153637","display_name":"Common value auction","level":2,"score":0.6442946195602417},{"id":"https://openalex.org/C181622380","wikidata":"https://www.wikidata.org/wiki/Q26911","display_name":"Profit (economics)","level":2,"score":0.6072477102279663},{"id":"https://openalex.org/C536738050","wikidata":"https://www.wikidata.org/wiki/Q3249071","display_name":"Social Welfare","level":2,"score":0.5051558613777161},{"id":"https://openalex.org/C144559511","wikidata":"https://www.wikidata.org/wiki/Q2986279","display_name":"Principal (computer security)","level":2,"score":0.4578503668308258},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.4357265830039978},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.419151246547699},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.40497317910194397},{"id":"https://openalex.org/C40700","wikidata":"https://www.wikidata.org/wiki/Q1411783","display_name":"Industrial organization","level":1,"score":0.3690037131309509},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.18568876385688782},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:CiteSeerX.psu:10.1.1.723.8946","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.723.8946","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cs.toronto.edu/%7Eomerl/papers/aamas13b.pdf","raw_type":"text"},{"id":"mag:3422056","doi":"https://doi.org/10.5555/2484920.2485027","is_oa":false,"landing_page_url":"https://eprints.soton.ac.uk/349575/1/fp210-Lev.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306417597","display_name":"Adaptive Agents and Multi-Agents Systems","issn_l":"1548-8403","issn":["1548-8403"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":["norway-1"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Adaptive Agents and Multi-Agents Systems","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W90726210","https://openalex.org/W170486074","https://openalex.org/W1501194660","https://openalex.org/W1503829231","https://openalex.org/W1525923969","https://openalex.org/W1539324953","https://openalex.org/W1560582989","https://openalex.org/W1604879105","https://openalex.org/W1969872310","https://openalex.org/W1993729355","https://openalex.org/W2015795013","https://openalex.org/W2022266118","https://openalex.org/W2028854072","https://openalex.org/W2065375156","https://openalex.org/W2075191824","https://openalex.org/W2079912971","https://openalex.org/W2096109831","https://openalex.org/W2102171270","https://openalex.org/W2124576904","https://openalex.org/W2126182847","https://openalex.org/W2129420332","https://openalex.org/W2157771656","https://openalex.org/W2183643410","https://openalex.org/W2341535507","https://openalex.org/W2532763342","https://openalex.org/W3049570326"],"related_works":["https://openalex.org/W6992702051","https://openalex.org/W2392338306","https://openalex.org/W2128089223","https://openalex.org/W7096321424","https://openalex.org/W2606415580","https://openalex.org/W7096954834","https://openalex.org/W2028854072","https://openalex.org/W7067576705","https://openalex.org/W7095094250","https://openalex.org/W1562618743"],"abstract_inverted_index":{"We":[0,10,38,78],"study":[1],"the":[2,15,21,24,30,42,46,49,56,63,68,75,86,90,93,97,102,105,108,121,135],"effects":[3],"of":[4,20,35,51,59,89],"bidder":[5],"collaboration":[6],"in":[7,96,114],"all-pay":[8],"auc-tions.":[9],"analyse":[11],"both":[12],"mergers,":[13],"where":[14,29,45,62],"remaining":[16,31],"play-ers":[17],"are":[18,33],"aware":[19],"agreement":[22],"between":[23],"cooperating":[25],"participants,":[26],"and":[27,55,71],"collusion,":[28],"players":[32],"unaware":[34],"this":[36],"agreement.":[37],"examine":[39],"two":[40],"scenarios:":[41],"sum-profit":[43,98],"model":[44,58],"auctioneer":[47,64,136],"obtains":[48,73],"sum":[50],"all":[52],"submitted":[53],"bids,":[54],"max-profit":[57],"crowdsourcing":[60],"contests":[61],"can":[65,119,130],"only":[66,74],"use":[67],"best":[69],"submis-sions":[70],"thus":[72],"winning":[76],"bid.":[77],"show":[79],"that":[80,113],"while":[81],"mergers":[82],"do":[83],"not":[84],"change":[85],"expected":[87],"utility":[88,95,103],"par-ticipants,":[91],"or":[92],"principal\u2019s":[94],"model,":[99],"collusion":[100,129],"transfers":[101],"from":[104],"non-colluders":[106],"to":[107,134],"colluders.":[109],"Surprisingly,":[110],"we":[111],"find":[112],"some":[115],"cases":[116],"such":[117],"col-laboration":[118],"increase":[120],"social":[122],"welfare.":[123],"Moreover,":[124],"merg-ers":[125],"and,":[126],"curiously,":[127],"also":[128],"even":[131],"be":[132],"beneficial":[133],"under":[137],"certain":[138],"conditions.":[139]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":2},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":2}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}