AT&T CEO John Stankey admits he was too slow to implement a cultural transformation, not that his blunt memo was a mistake. The memo, which urged employees to embrace a market-based culture or seek ...

Although there are many functions in the base package of R, sometimes there may not be a function that does exactly what you want. In this case, R allows users to create their own functions and call ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...