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Compared with official statistics on occupancy of tourist accommodation establishments, data on POS transactions tend to exhibit greater volatility and a less adverse year-on-year variation during the COVID-19 pandemic in Portugal. Still, both data sources reveal the same underlying trend. POS electronic payments, namely, at lodging establishments, deliver timely data for most municipalities in Portugal, filling in significant data gaps in many low-density areas, where statistical confidentiality is imposed in tourism indicators. This supports POS data\u2019s effectiveness to analyse regional inequalities at the municipal level, allowing to gain a clearer understanding of the impacts of COVID-19 in domestic tourism.<\/jats:p>","DOI":"10.1177\/14673584221075175","type":"journal-article","created":{"date-parts":[[2022,2,11]],"date-time":"2022-02-11T06:26:36Z","timestamp":1644560796000},"page":"101-107","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Tracking changes in tourism demand with point-of-sale data: The case of Portugal"],"prefix":"10.1177","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6274-9082","authenticated-orcid":false,"given":"Carlos P","family":"Marques","sequence":"first","affiliation":[{"name":"Department of Economics, Sociology and Management, The Centre for Transdisciplinary Development Studies, University of Tr\u00e1s-os-Montes and Alto Douro, Vila Real, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2019-3535","authenticated-orcid":false,"given":"Alexandre S","family":"Guedes","sequence":"additional","affiliation":[{"name":"Department of Economics, Sociology and Management, The Centre for Transdisciplinary Development Studies, University of Tr\u00e1s-os-Montes and Alto Douro, Vila Real, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4469-385X","authenticated-orcid":false,"given":"Ricardo","family":"Bento","sequence":"additional","affiliation":[{"name":"Department of Engineering, The Centre for Transdisciplinary Development Studies, University of Tr\u00e1s-os-Montes and Alto Douro, Vila Real, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2022,2,11]]},"reference":[{"key":"bibr1-14673584221075175","doi-asserted-by":"publisher","DOI":"10.1080\/13683500.2020.1846504"},{"key":"bibr2-14673584221075175","doi-asserted-by":"publisher","DOI":"10.1177\/1354816620912062"},{"key":"bibr3-14673584221075175","doi-asserted-by":"crossref","first-page":"100568","DOI":"10.1016\/j.jdmm.2021.100568","volume":"20","author":"Arbul\u00fa I","year":"2021","journal-title":"Journal of Destination Marketing & Management"},{"issue":"7","key":"bibr4-14673584221075175","first-page":"684","volume":"41","author":"Asakura Y","year":"2007","journal-title":"Transportation Research Part A: Policy and Practice"},{"key":"bibr5-14673584221075175","volume-title":"Using electronic card transaction data to measure and monitor regional tourism in New Zealand","author":"Burson R","year":"2014"},{"key":"bibr6-14673584221075175","doi-asserted-by":"publisher","DOI":"10.1007\/s11150-020-09539-2"},{"key":"bibr7-14673584221075175","first-page":"263","volume-title":"ACM SIGKDD international conference on Knowledge discovery and data mining","volume":"7","author":"Chiu T","year":"2001"},{"issue":"2","key":"bibr8-14673584221075175","first-page":"138","volume":"34","author":"Cortina Garc\u00eda F","year":"2018","journal-title":"BEIO, Bolet\u00edn de Estad\u00edstica e Investigaci\u00f3n Operativa"},{"key":"bibr9-14673584221075175","volume-title":"Early adopters of big data?","author":"Demunter C","year":"2017"},{"key":"bibr10-14673584221075175","volume-title":"Official Administrative Map of Portugal \u2013 CAOP 2019","author":"DGT","year":"2020"},{"key":"bibr11-14673584221075175","volume-title":"Portugal \u2013 NUTS level 3. 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