{"id":"https://openalex.org/W3107040567","doi":"https://doi.org/10.1145/3440959.3440963","title":"Buy-many mechanisms","display_name":"Buy-many mechanisms","publication_year":2020,"publication_date":"2020-12-02","ids":{"openalex":"https://openalex.org/W3107040567","doi":"https://doi.org/10.1145/3440959.3440963","mag":"3107040567"},"language":"en","primary_location":{"id":"doi:10.1145/3440959.3440963","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3440959.3440963","pdf_url":null,"source":{"id":"https://openalex.org/S4210233839","display_name":"ACM SIGecom Exchanges","issn_l":"1551-9031","issn":["1551-9031"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM SIGecom Exchanges","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/A5005407267","display_name":"Shuchi Chawla","orcid":"https://orcid.org/0000-0001-5583-2320"},"institutions":[{"id":"https://openalex.org/I135310074","display_name":"University of Wisconsin\u2013Madison","ror":"https://ror.org/01y2jtd41","country_code":"US","type":"education","lineage":["https://openalex.org/I135310074"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shuchi Chawla","raw_affiliation_strings":["University of Wisconsin-Madison and"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Wisconsin-Madison and","institution_ids":["https://openalex.org/I135310074"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003604562","display_name":"Yifeng Teng","orcid":"https://orcid.org/0000-0002-4824-3840"},"institutions":[{"id":"https://openalex.org/I135310074","display_name":"University of Wisconsin\u2013Madison","ror":"https://ror.org/01y2jtd41","country_code":"US","type":"education","lineage":["https://openalex.org/I135310074"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yifeng Teng","raw_affiliation_strings":["University of Wisconsin-Madison and"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Wisconsin-Madison and","institution_ids":["https://openalex.org/I135310074"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5027430783","display_name":"Christos Tzamos","orcid":"https://orcid.org/0000-0002-7560-5069"},"institutions":[{"id":"https://openalex.org/I135310074","display_name":"University of Wisconsin\u2013Madison","ror":"https://ror.org/01y2jtd41","country_code":"US","type":"education","lineage":["https://openalex.org/I135310074"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Christos Tzamos","raw_affiliation_strings":["University of Wisconsin-Madison"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Wisconsin-Madison","institution_ids":["https://openalex.org/I135310074"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I135310074"],"apc_list":null,"apc_paid":null,"fwci":0.1802,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.58568304,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"18","issue":"1","first_page":"12","last_page":"18"},"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/T11161","display_name":"Consumer Market Behavior and Pricing","score":0.9976999759674072,"subfield":{"id":"https://openalex.org/subfields/1406","display_name":"Marketing"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11031","display_name":"Game Theory and Applications","score":0.9958000183105469,"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/revenue","display_name":"Revenue","score":0.7857402563095093},{"id":"https://openalex.org/keywords/multiplicative-function","display_name":"Multiplicative function","score":0.6064037680625916},{"id":"https://openalex.org/keywords/bundle","display_name":"Bundle","score":0.5859239101409912},{"id":"https://openalex.org/keywords/logarithm","display_name":"Logarithm","score":0.49586543440818787},{"id":"https://openalex.org/keywords/mechanism-design","display_name":"Mechanism design","score":0.4411848485469818},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.4211081862449646},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4207116365432739},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.41084516048431396},{"id":"https://openalex.org/keywords/mathematical-economics","display_name":"Mathematical economics","score":0.40462806820869446},{"id":"https://openalex.org/keywords/microeconomics","display_name":"Microeconomics","score":0.3410835862159729},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3198867440223694},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.2984139025211334},{"id":"https://openalex.org/keywords/finance","display_name":"Finance","score":0.10498636960983276}],"concepts":[{"id":"https://openalex.org/C195487862","wikidata":"https://www.wikidata.org/wiki/Q850210","display_name":"Revenue","level":2,"score":0.7857402563095093},{"id":"https://openalex.org/C42747912","wikidata":"https://www.wikidata.org/wiki/Q1048447","display_name":"Multiplicative function","level":2,"score":0.6064037680625916},{"id":"https://openalex.org/C2778134712","wikidata":"https://www.wikidata.org/wiki/Q1047307","display_name":"Bundle","level":2,"score":0.5859239101409912},{"id":"https://openalex.org/C39927690","wikidata":"https://www.wikidata.org/wiki/Q11197","display_name":"Logarithm","level":2,"score":0.49586543440818787},{"id":"https://openalex.org/C153517567","wikidata":"https://www.wikidata.org/wiki/Q26090","display_name":"Mechanism design","level":2,"score":0.4411848485469818},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.4211081862449646},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4207116365432739},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.41084516048431396},{"id":"https://openalex.org/C144237770","wikidata":"https://www.wikidata.org/wiki/Q747534","display_name":"Mathematical economics","level":1,"score":0.40462806820869446},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","level":1,"score":0.3410835862159729},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3198867440223694},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.2984139025211334},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.10498636960983276},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3440959.3440963","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3440959.3440963","pdf_url":null,"source":{"id":"https://openalex.org/S4210233839","display_name":"ACM SIGecom Exchanges","issn_l":"1551-9031","issn":["1551-9031"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM SIGecom Exchanges","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Partnerships for the goals","score":0.4000000059604645,"id":"https://metadata.un.org/sdg/17"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1495768673","https://openalex.org/W1974560448","https://openalex.org/W2001983341","https://openalex.org/W2077124610","https://openalex.org/W2088970293","https://openalex.org/W2107403260","https://openalex.org/W2169604085","https://openalex.org/W2298380537","https://openalex.org/W2344198663","https://openalex.org/W2549743857","https://openalex.org/W2617513782","https://openalex.org/W2949491553","https://openalex.org/W2949836530","https://openalex.org/W2951767300","https://openalex.org/W2962924022","https://openalex.org/W2963050463","https://openalex.org/W2964055676","https://openalex.org/W2965052587","https://openalex.org/W3040724493","https://openalex.org/W3041483436","https://openalex.org/W4238495882"],"related_works":["https://openalex.org/W2002742191","https://openalex.org/W2312321405","https://openalex.org/W1964055828","https://openalex.org/W1503861729","https://openalex.org/W2315440833","https://openalex.org/W2360772539","https://openalex.org/W2154854986","https://openalex.org/W1975549609","https://openalex.org/W2004697082","https://openalex.org/W3107040567"],"abstract_inverted_index":{"Multi-item":[0],"mechanisms":[1,38,230,267,283],"can":[2,61,256,268],"be":[3,16,23,269],"very":[4,223],"complex,":[5],"offering":[6],"many":[7],"different":[8],"bundles":[9],"to":[10,22,82,113,154,206,211,272],"the":[11,26,46,63,90,93,109,134,150,157,168,185,212,263],"buyer":[12,94,110,151],"that":[13,75,89,141,167],"could":[14],"even":[15,41],"randomized.":[17],"Such":[18],"complexity":[19,233],"is":[20,142,152,177],"thought":[21],"necessary":[24],"as":[25,53,86,226,278],"revenue":[27,48,65,131,136,171,186,264,285],"gaps":[28],"between":[29],"randomized":[30],"and":[31,36],"deterministic":[32,35],"mechanisms,":[33,140,249],"or":[34],"simple":[37,251],"are":[39,219],"huge":[40],"for":[42,95,172,247],"additive":[43],"valuations.":[44],"Furthermore,":[45,191],"optimal":[47,64,135,169,213,281],"displays":[49],"strange":[50,77],"properties":[51,78],"such":[52,107],"non-continuity:":[54],"changing":[55],"valuations":[56],"by":[57,66,138,188],"tiny":[58],"multiplicative":[59,70,273],"amounts":[60],"change":[62],"an":[67],"arbitrarily":[68],"large":[69],"factor.":[71],"Our":[72],"work":[73],"shows":[74],"these":[76,217],"do":[79],"not":[80],"apply":[81],"most":[83,179],"natural":[84],"situations":[85],"they":[87],"require":[88],"mechanism":[91,158,193,252],"overcharges":[92],"a":[96,121,129,147,192,222,258],"bundle":[97],"while":[98,277],"selling":[99],"individual":[100],"items":[101],"at":[102,178],"much":[103,122,143],"lower":[104,123],"prices.":[105],"In":[106,146,245],"cases,":[108],"would":[111],"prefer":[112],"break":[114],"his":[115],"order":[116],"into":[117],"smaller":[118],"pieces":[119],"paying":[120],"price":[124],"overall.":[125],"We":[126,165],"advocate":[127],"studying":[128],"new":[130],"benchmark,":[132],"namely":[133],"achievable":[137,187],"\"buy-many\"":[139],"better":[144,239],"behaved.":[145],"buy-many":[148,170,214,282],"mechanism,":[149],"allowed":[153],"interact":[155],"with":[156,231],"multiple":[159],"times":[160,184],"instead":[161],"of":[162,194,229,253,265],"just":[163],"once.":[164],"show":[166,280],"any":[173,227],"n":[174,182,198,203,236],"item":[175,189],"setting":[176],"O":[180,201],"(log":[181],")":[183,204],"pricing.":[190],"finite":[195,254],"menu-size":[196,255],"(":[197,202],"/\u03b5)":[199],"2":[200],"suffices":[205],"achieve":[207,238],"(1":[208],"+":[209],"\u03b5)-approximation":[210],"revenue.":[215,244,261],"Both":[216],"results":[218],"tight":[220],"in":[221,235,243,260,275],"strong":[224],"sense,":[225],"family":[228],"description":[232],"sub-doubly-exponential":[234],"cannot":[237],"than":[240],"logarithmic":[241],"approximation":[242],"contrast,":[246],"buy-one":[248,266],"no":[250],"get":[257],"finite-approximation":[259],"Moreover,":[262],"extremely":[270],"sensitive":[271],"changes":[274],"values,":[276],"we":[279],"satisfy":[284],"continuity.":[286]},"counts_by_year":[{"year":2023,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}