{"id":"https://openalex.org/W4389669424","doi":"https://doi.org/10.3390/jtaer18040112","title":"Comment on Gruntkowski, L.M.; Martinez, L.F. Online Grocery Shopping in Germany: Assessing the Impact of COVID-19. J. Theor. Appl. Electron. Commer. Res. 2022, 17, 984\u20131002","display_name":"Comment on Gruntkowski, L.M.; Martinez, L.F. Online Grocery Shopping in Germany: Assessing the Impact of COVID-19. J. Theor. Appl. Electron. Commer. Res. 2022, 17, 984\u20131002","publication_year":2023,"publication_date":"2023-12-13","ids":{"openalex":"https://openalex.org/W4389669424","doi":"https://doi.org/10.3390/jtaer18040112"},"language":"en","primary_location":{"id":"doi:10.3390/jtaer18040112","is_oa":true,"landing_page_url":"https://doi.org/10.3390/jtaer18040112","pdf_url":"https://www.mdpi.com/0718-1876/18/4/112/pdf?version=1702437673","source":{"id":"https://openalex.org/S27967161","display_name":"Journal of theoretical and applied electronic commerce research","issn_l":"0718-1876","issn":["0718-1876"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Theoretical and Applied Electronic Commerce Research","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/0718-1876/18/4/112/pdf?version=1702437673","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5048433250","display_name":"Leo Van Hove","orcid":"https://orcid.org/0000-0001-7546-7746"},"institutions":[{"id":"https://openalex.org/I13469542","display_name":"Vrije Universiteit Brussel","ror":"https://ror.org/006e5kg04","country_code":"BE","type":"education","lineage":["https://openalex.org/I13469542"]}],"countries":["BE"],"is_corresponding":true,"raw_author_name":"Leo Van Hove","raw_affiliation_strings":["Department of Applied Economics, Vrije Universiteit Brussel (Free University of Brussels), 1050 Brussels, Belgium"],"raw_orcid":"https://orcid.org/0000-0001-7546-7746","affiliations":[{"raw_affiliation_string":"Department of Applied Economics, Vrije Universiteit Brussel (Free University of Brussels), 1050 Brussels, Belgium","institution_ids":["https://openalex.org/I13469542"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5048433250"],"corresponding_institution_ids":["https://openalex.org/I13469542"],"apc_list":{"value":1000,"currency":"CHF","value_usd":1207},"apc_paid":{"value":1000,"currency":"CHF","value_usd":1207},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.22449868,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"18","issue":"4","first_page":"2233","last_page":"2237"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11536","display_name":"Consumer Retail Behavior Studies","score":0.9993000030517578,"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"}},"topics":[{"id":"https://openalex.org/T11536","display_name":"Consumer Retail Behavior Studies","score":0.9993000030517578,"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/T11711","display_name":"COVID-19 Pandemic Impacts","score":0.9890999794006348,"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/T10145","display_name":"Consumer Behavior in Brand Consumption and Identification","score":0.9890000224113464,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/german","display_name":"German","score":0.8723738193511963},{"id":"https://openalex.org/keywords/coronavirus-disease-2019","display_name":"Coronavirus disease 2019 (COVID-19)","score":0.802727222442627},{"id":"https://openalex.org/keywords/sample","display_name":"Sample (material)","score":0.6527426242828369},{"id":"https://openalex.org/keywords/outbreak","display_name":"Outbreak","score":0.5200771689414978},{"id":"https://openalex.org/keywords/population","display_name":"Population","score":0.49181702733039856},{"id":"https://openalex.org/keywords/severe-acute-respiratory-syndrome-coronavirus-2","display_name":"Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","score":0.4889751672744751},{"id":"https://openalex.org/keywords/2019-20-coronavirus-outbreak","display_name":"2019-20 coronavirus outbreak","score":0.47224563360214233},{"id":"https://openalex.org/keywords/pandemic","display_name":"Pandemic","score":0.4695371389389038},{"id":"https://openalex.org/keywords/perception","display_name":"Perception","score":0.4487086534500122},{"id":"https://openalex.org/keywords/german-population","display_name":"German population","score":0.4300304651260376},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.4089183509349823},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.3910425305366516},{"id":"https://openalex.org/keywords/advertising","display_name":"Advertising","score":0.3828023076057434},{"id":"https://openalex.org/keywords/marketing","display_name":"Marketing","score":0.3443443775177002},{"id":"https://openalex.org/keywords/welfare-economics","display_name":"Welfare economics","score":0.3382638990879059},{"id":"https://openalex.org/keywords/political-science","display_name":"Political science","score":0.3200988173484802},{"id":"https://openalex.org/keywords/sociology","display_name":"Sociology","score":0.29959747195243835},{"id":"https://openalex.org/keywords/demography","display_name":"Demography","score":0.2835651636123657},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.25613561272621155},{"id":"https://openalex.org/keywords/history","display_name":"History","score":0.2226809859275818},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.1582689881324768},{"id":"https://openalex.org/keywords/virology","display_name":"Virology","score":0.10793858766555786},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09260311722755432}],"concepts":[{"id":"https://openalex.org/C154775046","wikidata":"https://www.wikidata.org/wiki/Q188","display_name":"German","level":2,"score":0.8723738193511963},{"id":"https://openalex.org/C3008058167","wikidata":"https://www.wikidata.org/wiki/Q84263196","display_name":"Coronavirus disease 2019 (COVID-19)","level":4,"score":0.802727222442627},{"id":"https://openalex.org/C198531522","wikidata":"https://www.wikidata.org/wiki/Q485146","display_name":"Sample (material)","level":2,"score":0.6527426242828369},{"id":"https://openalex.org/C116675565","wikidata":"https://www.wikidata.org/wiki/Q3241045","display_name":"Outbreak","level":2,"score":0.5200771689414978},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.49181702733039856},{"id":"https://openalex.org/C3007834351","wikidata":"https://www.wikidata.org/wiki/Q82069695","display_name":"Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","level":5,"score":0.4889751672744751},{"id":"https://openalex.org/C3006700255","wikidata":"https://www.wikidata.org/wiki/Q81068910","display_name":"2019-20 coronavirus outbreak","level":3,"score":0.47224563360214233},{"id":"https://openalex.org/C89623803","wikidata":"https://www.wikidata.org/wiki/Q12184","display_name":"Pandemic","level":5,"score":0.4695371389389038},{"id":"https://openalex.org/C26760741","wikidata":"https://www.wikidata.org/wiki/Q160402","display_name":"Perception","level":2,"score":0.4487086534500122},{"id":"https://openalex.org/C2909167518","wikidata":"https://www.wikidata.org/wiki/Q327213","display_name":"German population","level":3,"score":0.4300304651260376},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.4089183509349823},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.3910425305366516},{"id":"https://openalex.org/C112698675","wikidata":"https://www.wikidata.org/wiki/Q37038","display_name":"Advertising","level":1,"score":0.3828023076057434},{"id":"https://openalex.org/C162853370","wikidata":"https://www.wikidata.org/wiki/Q39809","display_name":"Marketing","level":1,"score":0.3443443775177002},{"id":"https://openalex.org/C549774020","wikidata":"https://www.wikidata.org/wiki/Q851147","display_name":"Welfare economics","level":1,"score":0.3382638990879059},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.3200988173484802},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.29959747195243835},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.2835651636123657},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.25613561272621155},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.2226809859275818},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.1582689881324768},{"id":"https://openalex.org/C159047783","wikidata":"https://www.wikidata.org/wiki/Q7215","display_name":"Virology","level":1,"score":0.10793858766555786},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09260311722755432},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.0},{"id":"https://openalex.org/C524204448","wikidata":"https://www.wikidata.org/wiki/Q788926","display_name":"Infectious disease (medical specialty)","level":3,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3390/jtaer18040112","is_oa":true,"landing_page_url":"https://doi.org/10.3390/jtaer18040112","pdf_url":"https://www.mdpi.com/0718-1876/18/4/112/pdf?version=1702437673","source":{"id":"https://openalex.org/S27967161","display_name":"Journal of theoretical and applied electronic commerce research","issn_l":"0718-1876","issn":["0718-1876"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Theoretical and Applied Electronic Commerce Research","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:337962fa10d443ac8c05d98ae93089aa","is_oa":true,"landing_page_url":"https://doaj.org/article/337962fa10d443ac8c05d98ae93089aa","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Theoretical and Applied Electronic Commerce Research, Vol 18, Iss 4, Pp 2233-2237 (2023)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/jtaer18040112","is_oa":true,"landing_page_url":"https://doi.org/10.3390/jtaer18040112","pdf_url":"https://www.mdpi.com/0718-1876/18/4/112/pdf?version=1702437673","source":{"id":"https://openalex.org/S27967161","display_name":"Journal of theoretical and applied electronic commerce research","issn_l":"0718-1876","issn":["0718-1876"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Theoretical and Applied Electronic Commerce Research","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.6000000238418579,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4389669424.pdf","grobid_xml":"https://content.openalex.org/works/W4389669424.grobid-xml"},"referenced_works_count":6,"referenced_works":["https://openalex.org/W2029320228","https://openalex.org/W2109032189","https://openalex.org/W3143311077","https://openalex.org/W4226316927","https://openalex.org/W4286208898","https://openalex.org/W4386268573"],"related_works":["https://openalex.org/W4200329650","https://openalex.org/W3127156785","https://openalex.org/W3009669391","https://openalex.org/W4206669628","https://openalex.org/W3113664224","https://openalex.org/W4205317059","https://openalex.org/W3005417802","https://openalex.org/W3084498529","https://openalex.org/W3022409537","https://openalex.org/W4226296940"],"abstract_inverted_index":{"Gruntkowski":[0,44],"and":[1,12,35,45],"Martinez":[2],"examined":[3],"the":[4,24,37,54,60,76],"impact":[5],"of":[6,52,57,62],"factors":[7],"such":[8],"as":[9],"perceived":[10,13],"risk":[11],"usefulness":[14],"on":[15],"German":[16,77],"consumers\u2019":[17],"intention":[18],"to":[19,75],"purchase":[20],"groceries":[21],"online":[22],"once":[23],"COVID-19":[25,38],"pandemic":[26],"had":[27],"subsided.":[28],"They":[29,66],"also":[30],"compared":[31],"consumer":[32],"perceptions":[33],"before":[34],"during":[36],"outbreak.":[39],"This":[40],"comment":[41],"shows":[42],"that":[43],"Martinez\u2019s":[46],"research":[47],"suffers":[48],"from":[49,71],"a":[50],"number":[51],"problems,":[53],"most":[55],"important":[56],"which":[58],"is":[59],"use":[61],"an":[63],"unrepresentative":[64],"sample.":[65],"should":[67],"therefore":[68],"have":[69],"refrained":[70],"generalizing":[72],"their":[73],"findings":[74],"population.":[78]},"counts_by_year":[],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}
