Trade is the buying and selling of goods and services. Digital trade is digitally-enabled, with the item of commerce being delivered digitally or physically. It is what happened to commerce when we got the internet.
Digital trade in Australia is set to quadruple by 2030 as is apparent to most of us who now buy on the internet rather than in a bricks-and-mortar retail outlet. It is linked to what is called the fourth industrial revolution. Just in case you need a refresher on the other three, the first comes in the 1780s with steam, the second in the 1870s with electricity, and the third in the 1950s with computers and communication systems. The fourth is the internet of everything with technology embedded within society, all of us connected to each other and to everything around us, creating cyber-physical systems.