• , 28 November 2021

A study by AMERICAN EXPRESS M&E

• , 14 October 2021

Report prepared by the INSTITUTO TECNOLÓGICO HOTELERO

• , 27 September 2021

A whitepaper prepared by AMADEUS

• , 15 June 2021

A survey prepared by GBTA

• , 26 May 2021

A study by the consulting firm ACCENTURE

• , 21 April 2021

Estudio elaborado por la Strategic Alliance of the National Convention Bureaux of Europe