{"id":"https://openalex.org/W2007867433","doi":"https://doi.org/10.1021/ie070395w","title":"Optimal Contract Selection for the Global Supply and Distribution of Raw Materials","display_name":"Optimal Contract Selection for the Global Supply and Distribution of Raw Materials","publication_year":2007,"publication_date":"2007-08-30","ids":{"openalex":"https://openalex.org/W2007867433","doi":"https://doi.org/10.1021/ie070395w","mag":"2007867433"},"language":"en","primary_location":{"id":"doi:10.1021/ie070395w","doi":"https://doi.org/10.1021/ie070395w","is_oa":false,"landing_page_url":"https://doi.org/10.1021/ie070395w","pdf_url":null,"source":{"id":"https://openalex.org/S202680183","display_name":"Industrial & Engineering Chemistry Research","issn_l":"0888-5885","issn":["0888-5885","1520-5045"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","jufo-1","ki-jl-1","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Industrial & Engineering Chemistry Research","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/A5051765644","display_name":"Mukta Bansal","orcid":"https://orcid.org/0000-0001-5333-634X","observed_orcids":["https://orcid.org/0000-0001-5333-634X"]},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]},{"id":"https://openalex.org/I4210105704","display_name":"Institute of Chemical and Engineering Sciences","ror":"https://ror.org/01cbwn720","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I4210105704","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Mukta Bansal","raw_affiliation_strings":["Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, and Process Sciences and Modeling, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, and Process Sciences and Modeling, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833","institution_ids":["https://openalex.org/I165932596","https://openalex.org/I4210105704"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045849005","display_name":"Iftekhar A. Karimi","orcid":"https://orcid.org/0000-0001-7122-0578","observed_orcids":["https://orcid.org/0000-0001-7122-0578"]},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]},{"id":"https://openalex.org/I4210105704","display_name":"Institute of Chemical and Engineering Sciences","ror":"https://ror.org/01cbwn720","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I4210105704","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"I. A. Karimi","raw_affiliation_strings":["Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, and Process Sciences and Modeling, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, and Process Sciences and Modeling, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833","institution_ids":["https://openalex.org/I165932596","https://openalex.org/I4210105704"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024616528","display_name":"Rajagopalan Srinivasan","orcid":"https://orcid.org/0000-0002-8790-4349","observed_orcids":["https://orcid.org/0000-0002-8790-4349"]},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]},{"id":"https://openalex.org/I4210105704","display_name":"Institute of Chemical and Engineering Sciences","ror":"https://ror.org/01cbwn720","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I4210105704","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Rajagopalan Srinivasan","raw_affiliation_strings":["Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, and Process Sciences and Modeling, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576, and Process Sciences and Modeling, Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833","institution_ids":["https://openalex.org/I165932596","https://openalex.org/I4210105704"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4500,"currency":"USD","value_usd":4500},"apc_paid":null,"fwci":3.0853,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.91323815,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"46","issue":"20","first_page":"6522","last_page":"6539"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10328","display_name":"Supply Chain and Inventory Management","score":0.7681000232696533,"subfield":{"id":"https://openalex.org/subfields/1404","display_name":"Management Information Systems"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10328","display_name":"Supply Chain and Inventory Management","score":0.7681000232696533,"subfield":{"id":"https://openalex.org/subfields/1404","display_name":"Management Information Systems"},"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/T11053","display_name":"Process Optimization and Integration","score":0.13529999554157257,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12709","display_name":"Optimization and Mathematical Programming","score":0.02850000001490116,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/contract-choice","display_name":"contract selection","score":0.7590000033378601},{"id":"https://openalex.org/keywords/strategic-sourcing","display_name":"strategic sourcing","score":0.8889999985694885},{"id":"https://openalex.org/keywords/raw-material-procurement","display_name":"raw material procurement","score":0.8320000171661377},{"id":"https://openalex.org/keywords/supply-chain-contracts","display_name":"supply contracts","score":0.45100000500679016},{"id":"https://openalex.org/keywords/chemical-industry","display_name":"chemical industry","score":0.722000002861023},{"id":"https://openalex.org/keywords/multi-period-optimization","display_name":"multi-period optimization","score":0.6169999837875366},{"id":"https://openalex.org/keywords/procurement-cost-minimization","display_name":"procurement cost minimization","score":0.8840000033378601},{"id":"https://openalex.org/keywords/purchase-commitment","display_name":"purchase commitment","score":0.6349999904632568},{"id":"https://openalex.org/keywords/price-discounts","display_name":"discounts","score":0.49300000071525574},{"id":"https://openalex.org/keywords/product-bundling","display_name":"bundling","score":0.8849999904632568},{"id":"https://openalex.org/keywords/spot-market","display_name":"spot market","score":0.6430000066757202},{"id":"https://openalex.org/keywords/inventory-cost","display_name":"inventory cost","score":0.75},{"id":"https://openalex.org/keywords/logistics-costs","display_name":"logistics costs","score":0.906000018119812},{"id":"https://openalex.org/keywords/supplier-selection","display_name":"supplier selection","score":0.765999972820282},{"id":"https://openalex.org/keywords/material-distribution","display_name":"material distribution","score":0.5230000019073486}],"concepts":[{"id":"https://openalex.org/C201650216","wikidata":"https://www.wikidata.org/wiki/Q829492","display_name":"Procurement","level":2,"score":0.7074883580207825},{"id":"https://openalex.org/C2780598303","wikidata":"https://www.wikidata.org/wiki/Q65921492","display_name":"Flexibility (engineering)","level":2,"score":0.6700472831726074},{"id":"https://openalex.org/C90673727","wikidata":"https://www.wikidata.org/wiki/Q901718","display_name":"Product (mathematics)","level":2,"score":0.5836163759231567},{"id":"https://openalex.org/C206139338","wikidata":"https://www.wikidata.org/wiki/Q192355","display_name":"Raw material","level":2,"score":0.5699592232704163},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.5462862253189087},{"id":"https://openalex.org/C40700","wikidata":"https://www.wikidata.org/wiki/Q1411783","display_name":"Industrial organization","level":1,"score":0.5083150267601013},{"id":"https://openalex.org/C158016649","wikidata":"https://www.wikidata.org/wiki/Q161726","display_name":"Multinational corporation","level":2,"score":0.5043250322341919},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.45622333884239197},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.4528641402721405},{"id":"https://openalex.org/C2776789725","wikidata":"https://www.wikidata.org/wiki/Q1572221","display_name":"Spot market","level":3,"score":0.4231474697589874},{"id":"https://openalex.org/C46934059","wikidata":"https://www.wikidata.org/wiki/Q61515","display_name":"Outsourcing","level":2,"score":0.41513964533805847},{"id":"https://openalex.org/C42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","level":1,"score":0.37291568517684937},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.22774410247802734},{"id":"https://openalex.org/C162853370","wikidata":"https://www.wikidata.org/wiki/Q39809","display_name":"Marketing","level":1,"score":0.18397372961044312},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0},{"id":"https://openalex.org/C206658404","wikidata":"https://www.wikidata.org/wiki/Q12725","display_name":"Electricity","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","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/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1021/ie070395w","doi":"https://doi.org/10.1021/ie070395w","is_oa":false,"landing_page_url":"https://doi.org/10.1021/ie070395w","pdf_url":null,"source":{"id":"https://openalex.org/S202680183","display_name":"Industrial & Engineering Chemistry Research","issn_l":"0888-5885","issn":["0888-5885","1520-5045"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","jufo-1","ki-jl-1","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Industrial & Engineering Chemistry Research","raw_type":"journal-article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/64340","doi":null,"is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/64340","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/89666","doi":null,"is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/89666","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Responsible consumption and production","id":"https://metadata.un.org/sdg/12","score":0.5612999796867371}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1603127832","https://openalex.org/W1992983421","https://openalex.org/W2019135709","https://openalex.org/W2026340062","https://openalex.org/W2041852170","https://openalex.org/W2046651766","https://openalex.org/W2051620589","https://openalex.org/W2067028305","https://openalex.org/W2073333753","https://openalex.org/W2923916621"],"related_works":["https://openalex.org/W2390471672","https://openalex.org/W562679143","https://openalex.org/W2116848327","https://openalex.org/W2030292702","https://openalex.org/W2796259755","https://openalex.org/W2947407033","https://openalex.org/W2007132973","https://openalex.org/W3121747512","https://openalex.org/W4377993904","https://openalex.org/W3085861242"],"abstract_inverted_index":{"A":[0],"multinational":[1],"company's":[2,61],"purchases":[3],"go":[4],"well":[5],"beyond":[6],"basic":[7],"raw":[8],"materials;":[9],"they":[10],"include":[11],"catalysts,":[12],"indirect":[13],"materials,":[14],"additives,":[15],"etc.":[16,52,132],"Strategic":[17],"sourcing":[18],"contracts":[19,35,56,87,98],"offer":[20],"several":[21,109],"advantages":[22],"and":[23,57,68,88,119,122],"are":[24],"common":[25],"practice":[26],"in":[27,37,65,105],"many":[28],"industries,":[29],"especially":[30],"the":[31,54,100,106,137],"chemical":[32],"industry.":[33],"However,":[34],"come":[36],"various":[38,143],"shades":[39],"of":[40,84,108,140],"price,":[41],"commitments,":[42,127],"duration,":[43],"terms,":[44],"flexibility,":[45],"lead":[46],"time,":[47],"quality,":[48],"discounts,":[49,120],"product":[50,130],"bundling,":[51,131],"Selecting":[53],"best":[55],"suppliers":[58,144],"for":[59,99],"a":[60,80,90],"globally":[62],"distributed":[63],"sites":[64],"an":[66],"integrated":[67],"global":[69],"business":[70],"environment":[71],"can":[72],"be":[73],"nontrivial.":[74],"In":[75],"this":[76],"paper,":[77],"we":[78],"propose":[79,89],"relatively":[81],"comprehensive":[82],"classification":[83],"material":[85],"supply":[86],"multiperiod":[91],"mathematical":[92],"programming":[93],"model":[94,134],"that":[95],"selects":[96],"optimal":[97,138],"minimum":[101],"total":[102],"procurement":[103],"cost":[104],"face":[107],"practical":[110],"considerations":[111],"such":[112],"as":[113],"different":[114],"contract":[115],"types,":[116],"multitier":[117],"prices":[118],"logistics":[121],"inventory":[123],"costs,":[124],"quantity/dollar":[125],"purchase":[126],"spot":[128],"market,":[129],"The":[133],"also":[135],"identifies":[136],"distribution":[139],"materials":[141],"from":[142],"to":[145],"plant":[146],"sites.":[147],"Our":[148],"examples":[149],"demonstrate":[150],"substantial":[151],"savings":[152],"over":[153],"ad":[154],"hoc":[155],"or":[156],"heuristic":[157],"methods.":[158]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2026-08-26T07:47:46.906454","created_date":"2016-06-24T00:00:00"}