With nearly three out of four consumers globally (71%) having access to the internet via a smartphone, retailers would be justified in thinking that the time is finally right for people to pay for goods and services via their mobile phone. However, in our study* of 17,000 consumers carried out in 17 countries, we identified that just 5% of transactions are made using a mobile device. Although cash and cards are still used for the majority of transactions (46% and 45% respectively), there is....