SK Telecom Co. is the world's first commercial CDMA digital cellular service. As of September 30, 1997, they have provided the highest quality service for more than 4 million cellular customers which includes 2.3 million digital cellular customers, and 7.1 million paging customers....
+See MoreSharpe-Lintner-Black CAPM alpha (Premium Members Only) Fama-French (1993) 3-factor alpha (Premium Members Only) Fama-French-Carhart 4-factor alpha (Premium Members Only) Fama-French (2015) 5-factor alpha (Premium Members Only) Fama-French-Carhart 6-factor alpha (Premium Members Only) Dynamic conditional 6-factor alpha (Premium Members Only) Last update: Saturday 1 November 2025
2018-01-23 06:38:00 Tuesday ET

Amazon, Berkshire Hathaway, and JPMorgan Chase establish a new company to reduce U.S. employee health care costs in negotiations with drugmakers, doctors, a
2018-02-23 09:35:00 Friday ET

Warren Buffett releases his annual letter to Berkshire Hathaway shareholders as of February 2018. Buffett discusses Berkshire's core cash ambition, its
2025-07-12 11:35:00 Saturday ET

Mitch Anthony explains why it is now more important for top sales leaders to apply social skills and emotional competences to fulfill customer needs, wants,
2019-01-19 12:38:00 Saturday ET

U.S. government shuts down again because House Democrats refuse to spend $5 billion on the border wall that would give President Trump great victory on his
2019-08-04 08:26:00 Sunday ET

U.S. and Chinese trade negotiators hold constructive phone talks after Presidents Trump and Xi exchange reconciliatory gestures at the G20 summit in Japan.
2018-02-27 09:35:00 Tuesday ET

Fed's new chairman Jerome Powell testifies before Congress for the first time. He vows to prevent price instability for U.S. consumers, firms, and finan