Fashion underpins the growth of ecommerce; online took a 14% share of all fashion retail in the UK last year and is set to rise further, challenging the economics of physical retail 

Mobile is a key driver, it is changing research and shopping habits, and in turn affecting supplier product cycles, merchandising and marketing strategies 

Social media has disrupted the traditional shopping funnel, changing how trends and styles proliferate and shifting the sites of authority and influence in a £66 billion sector

Amazon’s marketing services bring in a growing stream of direct, high-margin revenue, but their main role is still in supporting vendor partnerships

Amazon uses customer profile data to profit from its own media and that of others, illustrating the value of a direct customer relationship in online advertising

In the future, Amazon’s moves into video content and voice interfaces are likely to significantly expand ad inventory, but maintaining the trust of shoppers is not straightforward

Enterprise cloud computing democratises access to IT capacity ranging from specialised software to platforms to infrastructure, transforming cost structures in sectors like media and retail

Cloud enables unprecedented scalability of bandwidth for digital media services like Pokémon Go and Netflix, while also hosting the back-end for advertisers and retailers 

As the industry consolidates quickly, intense competition among Amazon, Microsoft and Google is delivering value to customers and boosting adoption

Netflix celebrated the 10-year anniversary of its streaming service by posting its largest quarterly rate of subscriber growth, adding just over 7m new subscribers in Q4 2016, smashing its own forecast for the period of 5.2m

5.12m of the new subscribers were for its international services, attributed to acceptance of its growing suite of English language original programs. But growth is just as likely related to the bolstering of overseas offerings with acquired programming, after launching worldwide with relatively small libraries

While re-establishing confidence after a period of doubt when missing targets in Q2, challenges await; most notably concerns around net neutrality, diversifying content genres, and the open question as to how effectively original programming will be able to carry the service

Streaming is now mainstream and we predict 113% growth in expenditure on subscriptions for 2015-18 in the top four markets (US, UK, Germany and France)

Free vs paid-for streaming is the central question for the music ecosystem: free yields fractions of pennies, making subscription the only credible business model

Market leader Spotify is facing competition from tech giants Amazon, Apple and Google, with deep pockets, for whom content is a pawn in a larger game

As smartphone ownership nears saturation in almost all consumer groups, the base for the UK digital economy is widening: media consumption continues to move to connected devices and use of consumer services on mobile grows

Ecommerce is now responsible for 75% of retail growth, steady even during periods of decline for the overall market

Google and Facebook take up almost 90% of gross online advertising growth this year, and the ecommerce and mobile service markets show early signs of platform concentration

US entertainment groups have not been disrupted by the rise of digital media. Long running franchises drive growth across diverse sectors, starting with pay-TV and SVOD. US television advertising is rising in line with GDP, while the online video ad market is flourishing, with much appearing alongside the majors' scripted content

Studios' cable channels are their most profitable assets, but M&As with distribution platforms, including Comcast's aquisition of NBC Universal, have usually failed to deliver synergies

The Donald Trump presidency could leverage hostile public opinion towards mergers to undermine the AT&T bid for Time Warner; but it could also stimulate M&As if it granted tech companies a tax break to repatriate profits. A more protectionist administration could also bring about a less benevolent attitude towards majors' foreign operations

Google’s recent hardware launch event was a confident assertion of an AI-led future where Google’s services are present for everyone, everywhere

With Google’s Assistant central to them, devices like the Pixel phone and Google Home smart speaker put pressure on Samsung, Apple and Amazon

If Google’s AI push is successful, it will evolve and strengthen the company’s role as a gatekeeper to content and services, fundamentally reshaping search marketing

The automotive industry is moving towards self-driving or autonomous vehicles (AVs) as a mass-market proposition, relying on a spate of partnerships with tech companies

Ridesharing in AVs is the obvious commercial application, with Uber and Google racing to launch pilots of their fleets

Many challenges lie ahead. AV developers claim current regulation is too restrictive, whilst regulators argue that mass market AVs do not yet meet safety standards

Amazon’s smart Echo speakers are coming to Europe, powered by a voice-controlled intelligent assistant, Alexa. Echo is thought to have found surprise success in the US

Alexa is best thought of as the most complete Voice User Interface (VUI) on the market. We expect VUIs to supplant graphical user interfaces for a variety of use-cases, in the home, on the move and in the car. Competition in this area is increasing

Alexa is being positioned as the Android for voice, moving beyond devices made by Amazon in an attempt to jumpstart adoption, and with developers building services on top of Alexa’s core voice platform