{"id":"https://openalex.org/A5019098774","orcid":"https://orcid.org/0000-0001-5372-9813","observed_orcids":["https://orcid.org/0000-0001-5372-9813"],"display_name":"Sajjad Najafi","raw_author_names":["Sajjad Najafi"],"full_name":"Najafi, Sajjad","works_count":20,"cited_by_count":250,"summary_stats":{"2yr_mean_citedness":2.75,"h_index":8,"i10_index":6},"ids":{"openalex":"https://openalex.org/A5019098774","orcid":"https://orcid.org/0000-0001-5372-9813","observed_orcids":["https://orcid.org/0000-0001-5372-9813"]},"affiliations":[{"institution":{"id":"https://openalex.org/I119025939","ror":"https://ror.org/01e8ff003","display_name":"Shahed University","country_code":"IR","type":"education","lineage":["https://openalex.org/I119025939"]},"years":[2012,2011,2010]},{"institution":{"id":"https://openalex.org/I4210163840","ror":"https://ror.org/05km8ys10","display_name":"Islamic Azad University of Urmia","country_code":"IR","type":"education","lineage":["https://openalex.org/I110525433","https://openalex.org/I4210163840"]},"years":[2019]},{"institution":{"id":"https://openalex.org/I83860666","ror":"https://ror.org/0423jsj19","display_name":"HEC Paris","country_code":"FR","type":"education","lineage":["https://openalex.org/I83860666"]},"years":[2026,2025,2024,2023,2022,2021,2018,2017,2016]}],"last_known_institutions":[{"id":"https://openalex.org/I83860666","ror":"https://ror.org/0423jsj19","display_name":"HEC Paris","country_code":"FR","type":"education","lineage":["https://openalex.org/I83860666"]}],"topics":[{"id":"https://openalex.org/T10328","display_name":"Supply Chain and Inventory Management","count":11,"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","count":10,"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/T12288","display_name":"Optimization and Search Problems","count":5,"subfield":{"id":"https://openalex.org/subfields/2614","display_name":"Theoretical Computer Science"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12709","display_name":"Optimization and Mathematical Programming","count":3,"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/T10006","display_name":"Job Satisfaction and Organizational Behavior","count":2,"subfield":{"id":"https://openalex.org/subfields/1407","display_name":"Organizational Behavior and Human Resource Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12288","display_name":"Optimization and Search Problems","value":7.21e-05,"subfield":{"id":"https://openalex.org/subfields/2614","display_name":"Theoretical Computer Science"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10328","display_name":"Supply Chain and Inventory Management","value":3.32e-05,"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/T12583","display_name":"Food Waste Reduction and Sustainability","value":3.22e-05,"subfield":{"id":"https://openalex.org/subfields/1106","display_name":"Food 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"}},{"id":"https://openalex.org/T11161","display_name":"Consumer Market Behavior and Pricing","value":2.1e-05,"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/T11413","display_name":"Risk and Portfolio Optimization","value":1.77e-05,"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"}}],"x_concepts":[{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.7529820203781128},{"id":"144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","score":0.7033321857452393},{"id":"42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","score":0.48777180910110474},{"id":"162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","score":0.442246675491333},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.4218592941761017}],"counts_by_year":[{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":7},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":11},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2016,"works_count":2,"oa_works_count":1,"cited_by_count":11},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":14},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":12},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":11},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":20},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":25},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":20},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":15},{"year":2025,"works_count":2,"oa_works_count":2,"cited_by_count":31},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":27}],"display_name_alternatives":["Sajjad Najafi"],"block_key":"s najafi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5019098774","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}