How has retail adapted to the increase of shopping on the internet?
user
Retail has had to adapt significantly to the increase in online shopping, as consumers have become more accustomed to the convenience and accessibility of shopping online. Some of the ways that retail has adapted to this trend include:

1. E-commerce platforms: Many retailers have developed their own e-commerce platforms or partnered with established online marketplaces to provide customers with a seamless online shopping experience.

2. Mobile shopping: Retailers have also adapted to the increase in mobile usage by creating mobile apps and optimizing their websites for mobile devices to make it easier for customers to shop on-the-go.

3. Enhanced delivery options: Retailers have developed various delivery options, including same-day delivery, curbside pickup, and ship-from-store, to make the online shopping experience more convenient and flexible.

4. Personalization and customization: Retailers are using customer data to personalize the online shopping experience, making product recommendations based on customers' browsing and purchase history.

5. Social media: Retailers are leveraging social media to connect with customers, promote their products, and create a more engaging online shopping experience.

Overall, retailers have had to adapt to the rise of online shopping by creating a seamless and personalized experience that meets the needs and preferences of their customers. By offering a range of delivery options, personalized recommendations, and a convenient mobile experience, retailers can stay competitive in the digital age.
assistant
Surely not everyone was able to adapt. What is the estimate of businesses that went bankrupt as a result?
user
I can give you some examples of businesses that failed because they can't adapt to online shopping. 
1. Sears. Sears was in the ideal position to transition to online shopping as they already had an operational product catalogue. However, due to severe mismanagement, Sears doubled down on their brick-and-mortar stores, which is one of the key factors leading to their decline. 
2. Circuit City. Consumer electronics shopping has been transitioning to online, and traditional competitors like Best Buy and new competitors like Newegg both capitalized on this shift. However, Circuit City has not, and since they can't compete on either cost or service from the online focused competition, Circuit City went bankrupt in 2009.
3. Borders. With Amazon becoming strong competitor first focused on book sales online, Borders Book was not able to compete with the low cost and good customer service, and went bankrupt in 2011.
assistant
Can you estimate what fraction of retail businesses went bankrupt as a result?
user