Disney buys a big part of 21st Century Fox. Costco delivers surprising online numbers. And Waste Management once again proves that trash is treasure. Plus, CNBC’s Carl Quintanilla talks bitcoin, business, and what to watch in 2018. To get a limited-edition holiday shave set while supplies last, go to Harrys.com/Fool.   Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

Dan Ariely on Money Mistakes

Join hosts Dylan Lewis, Deidre Woollard, Ricky Mulvey, and Mary Long as they cover the day’s top business news and financial headlines with the Motley Fool's team of investment analysts. Tune in on weekends for the greatest investing classes you never got the chance to take in school and perspectives from special guests helping to shape the future.