The bottom line
Twitter lost 9 million users from June to September, its worst quarterly drop ever. Much of the decline was due to the social media service’s crackdown on abuse and banning of users who deployed bots or disseminated spam. Twitter has 326 million users worldwide.
Chinese companies spent $61 billion on research and development for the year that ended June 30, up from $7 billion in 2010. But American firms still spend about $5 in R&D for every $1 spent by China, investing $329 billion for the year, more than 40 percent of the world’s total.
The Wall Street Journal
Services such as Uber and Lyft have increased traffic fatalities in the U.S. by up to 3 percent since 2011—about 1,100 deaths a year—according to a University of Chicago study. Many people have abandoned public transit for ride-sharing services, and the total number of vehicle miles driven in the nine top metro areas has risen by 5.7 billion miles a year.
MIT Technology Review
Nearly half of American men—47 percent—believe that their families’ finances have improved in the past year, according to a poll by SurveyMonkey. Only 30 percent of women believe the same. Overall consumer confidence remains high at 60 percent.
The New York Times
Amazon has banned more than 5,700 of its top reviewers over the past two years, suspecting that many had received cash or gift cards to write positive reviews of products.