Learn how to distinguish marginal costs by exploring their relationship with fixed and variable costs in production.

Referees have taken on three new roles over the past year or so, making them a more prominent part of broadcasts than ever before ...

UEFA refereeing director Roberto Rosetti says European soccer must avoid going in the direction of microscopic VAR intervention. Technology was introduced to erase clear and obvious errors but support ...

Aston Villa's Lucas Digne handballs inside the area against Newcastle in the FA Cup on Saturday X/@footballontnt The Athletic FC ⚽ is The Athletic’s daily football (or soccer, if you prefer) ...

Germany’s referees are under scrutiny after a plethora of questionable decisions and incorrect calls compounded by anger over the video assistant referees’ failure to correct them. It’s leading to wid ...

Tammy Abraham's goal for Aston Villa was disallowed by VAR after the ball was deemed to have gone out of play in the build-up - but was there conclusive evidence? Abraham thought he had marked his ...

The Premier League have explained why VAR made the decision to rule a Fulham goal out against Manchester United on Sunday. Marco Silva's side thought they had pulled one back in the 65th minute when ...

Meanwhile, Celtic are set for a windfall with former player and forward Oh Hyeon-Gyu, 24, expected to join Besiktas from Genk for £10m. (National - subscription required) A bid by Queens Park Rangers ...

Chelsea's FA Cup third round tie against Charlton Athletic will not have Video Assistant Referee (VAR) available, it has been confirmed. Liam Rosenior's side head to The Valley on Saturday night to ...

Var Energi confirmed a new oil discovery on Norway's side of the Barents Sea, the second discovery in weeks in its ongoing Goliat Ridge drilling campaign. Var Energi ASA on Thursday confirmed a new ...

The Carabao Cup fourth round takes centre stage midweek, with the 16 teams remaining looking to continue their quest to conquer the first major trophy of the season in English football. The fourth ...

Var Energi ASA, Norway’s third-biggest oil and gas company, sees oil’s supply and demand outlook stabilizing next year, with prices not dropping significantly below $60 a barrel. “We may see a short ...