According to the UN Conference on Trade and Development (UNCTAD) (2015), e-commerce covers purchases and sales conducted over computer networks, using multiple formats and devices, including the web and electronic data interchange, using personal computers, laptops, tablets and mobile phones of varying levels of sophistication. E-commerce may involve physical goods as well as intangible (digital) products and services that can be delivered digitally (ibid.). Digital trade, a form of e-commerce, is defined as trade in purely digitised products that can be downloaded or streamed over the internet (UNCTAD, 2016). Forms can be business to business (B2B), business to consumer (B2C), consumer to consumer (C2C), business to government (B2G) and, to a certain extent, government to government (G2G).