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

Virgin Media successfully ramped up its network extension in Q4, passing more than double the homes in the previous quarter, and above the rate required to meet 2017 expectations

Net customer additions were, however, relatively weak, entirely due to extra churn caused by the price increase implemented in the quarter. The price increase’s effect on ARPU and revenue growth was muted by ARPU discounting for new customers, leaving revenue growth broadly unchanged

Subscriber growth has already improved in early 2017, and is likely to continue to improve through the year. The discounted ARPU impact will be more sustained, but robust revenue growth is still likely throughout the year

UK mobile service revenue growth improved in Q3 to -0.8% from -1.7% in the previous quarter, a welcome turnaround after three quarters of declining growth. Pricing remains firm, data volume growth remains robust, and some of the one-off factors affecting the previous quarter have dropped out

Sky Mobile soft-launched at the end of 2016, and it is taking an aggressive approach with a very deep MVNO technical model with substantial fixed costs, a high advertising budget and ambitious internal subscriber targets. To date the fixed MVNOs have not had a substantial impact on the MNOs, targeting a customer base that is non-core, but with SIM-only on the rise this may change

Looking at recently released network performance statistics, the impact of spectrum disparities is clear, with EE both able to offer faster speeds nationwide due to its large blocks of 4G spectrum, and offer much faster speeds in London. EE also has a lead in geographic coverage, and is planning to push its coverage much further, creating a challenge for the other operators to keep up

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

UK digital advertising has enjoyed strong growth in 2016, with forecast growth of 12.7% for the full year, just scraping under the £10 billion milestone

However, this growth is highly uneven, being led by mobile display and mobile search, while desktop spend looks set to decline by over 5% year-on-year. More significantly, 90% of the growth is accruing to the two big players: Facebook and Google

Cross-device campaigns, the convergence of marketing and advertising functions, and new consumption trends all threaten our traditional categorisations of online ad spend

Snap’s IPO is reportedly pressing ahead as expected, suggesting a remarkably early maturity for the company’s advertising business model

Snapchat creatively adapts the tried and true TV advertising formula, focusing on content, context and audience affinity – this goes against the grain of digital advertising and could unlock new brand budgets for online

After an IPO, Snap’s founders would have the freedom to expand their platform with new content, distribution channels and even devices

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

Digital consumption has generated a lot of data in marketing and media and a huge variety of new opportunities for marketeers—but insights and intelligence are not growing as much as data points, as a culture of short termism prevails

We recommend the linking of audience measurement and consumer behaviour data, but the industry lacks both standards and trust, while the still-immature digital marketing supply chain poses problems for data integrity

The new data economy has also precipitated a new war for talent, with marketing, media and publishing competing with technology, finance and other industries to attract the best quant and science brains to transition the creative sectors.

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