With large sectors of the economy unable to do business as usual, many marketers have paused or changed media plans. In one potential early sign of the tough times to come for digital advertising, Twitter updated its guidance to investors earlier this week and announced that it expects to see a drop in Q1 2020 revenues, on a year-over-year basis, due to the coronavirus pandemic.

eMarketer principal analyst Andrew Lipsman discusses the current wave of retail store closures, the seismic shift to online shopping and what retailers should be thinking about during this time. He then talks about why payments firm Square is opening a bank, how you can help your local restaurants and where to watch live streamed music concerts from home.

Having experienced the frustrations of shopping for underwear and socks firsthand, Brian Berger, founder and CEO of men’s lifestyle brand Mack Weldon, set out to reinvent men’s basics.

eMarketer principal analyst Nicole Perrin discusses how the coronavirus will impact tourism. How will it change airlines, accommodation and travel-related ad spending? She then discusses what will happen to movie theaters and ride-hailing services as the pandemic takes hold.

With the ever-changing situation surrounding the coronavirus outbreak, it is unclear how long the pandemic will last and what its effect on the economy—and therefore the TV industry—will be.

The coronavirus pandemic is touching all aspects of daily life in the UK and around the world. From an industry perspective, those most affected thus far rely on movement of people, particularly travel and hospitality. Some have been able to adapt to this new reality, sustained largely by digital, but the hospitality sector is grappling with an environment where human contact of any kind is becoming increasingly limited, even when mediated by digital.

With the exception of grocery stores and drugstores—which remain open—practically all other brick-and-mortar retail has seen a seismic drop in foot traffic before temporarily closing down their locations for the foreseeable future as the coronavirus pandemic continues to spread in the US. This is resulting in huge drops in revenue.

In the latest episode of "Behind the Numbers," eMarketer principal analyst Nicole Perrin talks about presidential hopeful Elizabeth Warren's proposal for breaking up big tech.

Just months after the first case was reported, it is already clear that COVID-19 is having a negative impact on ad spending in China. In fact, we have lowered our outlook for China ad spending for 2020 and beyond.

eMarketer principal analysts Nicole Perrin and Andrew Lipsman, along with vice president of content studio Paul Verna, examine the ongoing effects of the COVID-19 pandemic on grocery delivery, highlight how companies and individuals are coming up with innovative solutions, and point out examples of positive, and not-so-positive, corporate responses.

Business Insider Intelligence research analyst Zoë LaRock discusses the impact of the coronavirus pandemic on digital health adoption in the US. She explores how digital firms are helping legacy providers manage the pandemic, whether the crisis will move the needle for telehealth adoption in the US, and the limitations of virtual care.

eMarketer senior analyst Jasmine Enberg, forecasting analyst Eric Haggstrom and principal analyst Nicole Perrin discuss how COVID-19 could affect ad spending. What do we expect to happen? And what developments might get us to make revisions? They then talk about recent event cancellations, France's record fine of Apple and Starbucks' "to-go" model.

As Americans across the country prepared for major social distancing measures to mitigate the coronavirus pandemic, pantries—and inboxes—have never been so full.

Business Insider Intelligence's research director Dan Van Dyke discusses the impact of the coronavirus pandemic on the financial services industry, including key takeaways for banks, payment companies and fintech.

eMarketer principal analyst Jillian Ryan analyzes the impact of the coronavirus pandemic on event strategy for B2Bs. She discusses the edge that tech-savvy companies like Google and Adobe have over other sectors looking to pivot to virtual events, and even internal meetings. Watch now.

eMarketer principal analyst Andrew Lipsman joins host Nicole Perrin to discuss the branding efforts—or lack thereof—of this year's presidential contenders and what the strategies of direct-to-consumer (D2C) marketers can teach politicians. Which politico is most like Dollar Shave Club, and whose brand is most similar to Untuckit?