The electronic gift vouchers system has an issuer (E) transmitting data (D) to a server (S) to generate for each receiver (R) an entitlement to value in electronic form. The receiver stores the electronic entitlement in memory. Entitlements can be used fully or partially in a transaction ...
Incentives were also used: all those who completed the survey were invited to take part in a drawing for one of three EUR 500 travel vouchers; a small donation to charity was also made for every completed survey received. A low response rate of 25% was anticipated, in line with previous...