Black Hills Corporation is an energy company that generates wholesale electricity and produces natural gas, crude oil and coal. They serve natural gas and electric utility customers in Arkansas, Colorado, Iowa, Kansas, Montana, Nebraska, South Dakota and Wyoming....
+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 7 March 2026
2018-06-03 07:35:00 Sunday ET

Several recent events explain why Trump may undermine multilateral world order. First, Trump withdraws the U.S. from the 12-nation Trans-Pacific Partnership
2018-12-17 08:43:00 Monday ET

Apple files an appeal to overturn the recent iPhone sales ban in China due to its patent infringement of Qualcomm proprietary technology. This recent ban of
2018-03-03 11:37:00 Saturday ET

President Xi seeks Chinese congressional approval and constitutional amendment for abolishing his term limits of strongman rule with more favorable trade de
2021-05-20 10:30:00 Thursday ET

Artificial intelligence, 5G, and virtual reality can help transform global trade, finance, and technology. Core trade technological advances and disruptive
2018-09-07 07:33:00 Friday ET

The Economist re-evaluates the realistic scenario that the world has learned few lessons of the global financial crisis from 2008 to 2009 over the past deca
2018-06-06 09:39:00 Wednesday ET

Donald Trump and Kim Jong Un meet, talk, and shake hands in the historic peace summit between America and North Korea in Singapore. At the start of the bila