Presidential candidate Donald Trump, Senator Marco Rubio and Ben Carson during the Republican Presidential Debate in Milwaukee, Wisconsin. Photograph: Scott Olson/Getty Images 0:30

Donald Trump clashed with rivals, former Florida governor Jeb Bush and Ohio governor John Kasich in the Republican Party’s fourth presidential debate (...)

Indra Nooyi, chairman and chief executive officer of PepsiCo, wakes at 4am each morning and is in the office no later than 7am. Photograph: Daniel Acker/Bloomberg News

Do you have the habits of a highly successful person, such as making your bed, connecting with your spouse and getting up at 4.30am to read? Or is you(...)

Republican presidential hopefuls Jeb Bush (left) and Donald Trump look on during a break in the Republican presidential debate in Boulder, Colorado. Photograph: Robyn Beck/AFP/Getty Images

The third debate in the Republican White House race was dominated not by the runaway leaders – outsiders Donald Trump and retired surgeon Ben Carson –(...)

 Jeb Bush (left) listens as senator Marco Rubio makes a point at the 2016 US Republican presidential candidates debate held by CNBC in Boulder, Colorado, October 28th, 2015. Photograph: Rick Wilking/Reuters 1:44

Withering put-downs and sharp exchanges dominated the third Republican presidential debate as the one-time frontrunner Jeb Bush came off worst on a(...)

Key speakers include Ingrid Vanderveldt of the US-based Empower A Billion Women 2020 organisation, who is also a former entrepreneur in residence at Dell, and a CNBC television host

West Cork might not seem the most obvious location for a festival focused on digital technology, but more than 2,000 entrepreneurs, tech enthusiasts, (...)

13/11/2014.  - NEWS - HEALTH -Denis O'Brien, at the GETHealth, Global Education & Technology Health Summit, organised by John Hopkins Centre for Clinical Global Health Education,  in Dublin Castle on Thursday.Photograph; Dara Mac Dónaill / The Irish TimesPhotograph; Dara Mac Donaill / The Irish Times

As the media picked apart Denis O’Brien’s decision to yank the $2 billion flotation of Digicel, its biggest rival quietly kicked it while it was down.(...)

A concern for fund managers was that only a tiny proportion of Digicel revenues come from cable and fibre services. Photograph: Reuters

The warning lights started flashing over the weekend in the Carribbean, suggesting all was not well with Denis O’Brien’s plan to raise up to $2 billio(...)

Denis O’Brien: ‘Why sell your front garden at a discount when you know it’s worth a lot more money?’ Photograph: Dara Mac Dónaill / The Irish Times

Denis O’Brien yesterday signalled he will try again to float his Caribbean mobile company, Digicel, “within a year” after earlier yanking its proposed(...)

A dragon head in Beijing, China. Photograph: Rolex Dela Pena/EPA

Global markets may be blaming their jitters on the economic slowdown in China, but in the streets of Shanghai and Beijing there are few signs of panic(...)

The growth rate in Twitter users has fallen in every quarter since Twitter’s market debut 21 months ago.

Last week was another lousy one for Twitter. The stock plunged 14 per cent following its earnings report, and is now almost 60 per cent below December(...)