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        <titl xml:lang="en">International Passenger Survey, 2023</titl>
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      <abstract xml:lang="en">&lt;P&gt;Abstract copyright UK Data Service and data collection copyright owner.&lt;/P&gt;The &lt;i&gt;International Passenger Survey&lt;/i&gt; (IPS) aims to collect data on both credits and debits for the travel account of the Balance of Payments, provide detailed visit information on overseas visitors to the United Kingdom (UK) for tourism policy, and collect data on international migration.&lt;br&gt;</abstract><abstract xml:lang="en">&lt;p&gt;The International Passenger Survey (IPS) aims to collect data on both credits and debits for the travel account of the Balance of Payments, provide detailed visit information on overseas visitors to the United Kingdom (UK) for tourism policy, and collect data on international migration.&lt;/p&gt; &lt;p&gt;For the International Passenger Survey 2023, additional variables have been included in the “QReg” dataset, as detailed in the linked document. The “Custom” dataset is the updated version of “QcontCust,” with changes also outlined in the linked document. The “QReg” dataset has been expanded to provide more variables for analysis. The “Custom” dataset has been updated with extra variables for enhanced analysis and updated variable names where necessary.&lt;br&gt;&lt;br&gt;&lt;span style="font-style: italic;"&gt;Latest edition information&lt;/span&gt;&lt;br&gt;For the second edition (June 2025),a revised QReg data file has been added to the study. The original QReg data file contained an error and should not be used.&lt;/p&gt; &lt;div&gt;&lt;br&gt; &lt;/div&gt;</abstract><abstract xml:lang="en">&lt;B&gt;Main Topics&lt;/B&gt;:&lt;BR&gt;</abstract><abstract xml:lang="en">&lt;p&gt;Each of the four subject areas of this study covers different topics, as it follows:&lt;/p&gt; &lt;p&gt;'Airmiles': quarter; flow; serial; UK port or route; direct leg overseas port; final overseas port; distance from UK port to first port; from first to second port; from UK port to second port&lt;/p&gt; &lt;p&gt;'Alcohol': year; quarter; month; flow; serial; money spent on spirits; wine; beer; champagne; cigarettes; hand-rolled and other tobacco&lt;/p&gt; &lt;p&gt;'Qreg': year; quarter; month; flow; serial; towns stayed in overnight; details of type of accommodation; number of nights spent in towns; expenditure in towns; regional stay weight; regional visit weight; regional expenditure weight; various validation checks&lt;/p&gt; &lt;p&gt;'Custom': year; quarter; month; flow; serial; nationality; country of visit/residence; UK counties; date visit began; purpose of visit; intended length of stay; number of people; package tour and cost; expenditure pre-, post- and during visit; flight prefix and suffix; first carrier air or shipping line; direct leg overseas port; final overseas port; long- or short-haul; type of vehicle; number travelling in vehicle; fare type and cost; class of travel; business trip; type of flight; flight origin or destination; gender; age group; UK port or route; quality of response; date of interview; money transfer, net and total expenditure; type of transport; arrivals (number of adults); departures (type of travelling group, number of adults and children); weighting variables; various validation checks&lt;/p&gt;</abstract>
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        Avogadro, N. and Redondi, R. (2023) 'Diverted and induced demand: evidence from the London-Paris passenger market', Research in Transportation Economics, 100, 101304. doi: 10.1016/j.retrec.2023.101304
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        Thomas E. Guerrero B., Avogadro, N., Ramos, R. Control Function Approach for Addressing Endogeneity in Transport Models: A Case Study on the London–Amsterdam Route, Journal of Choice Modelling, Volume 54, 2025, 100537. doi:10.1016/j.jocm.2024.100537
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