Spirit Airlines files for bankruptcy amid mounting financial losses

Biggest US budget airline says it expects to operate as normal as it works its way through Chapter 11 process

UK consumer confidence drops as household finances are squeezed; UK and US sign civil nuclear collaboration deal – as it happened

Rolling coverage of the latest economic and financial news

Exclusive: Company relies on obsolete tech and there are troubling security gaps, Guardian investigation suggests

National insurance increase and higher interest rates mean company failures will stay high, says Begbies Traynor

After the Oasis ticket row, experts say fluctuating charges could become the norm in other industries

Retailer’s share price has crashed amid post-Covid high street recovery and competition from Shein and others

Price cap for Great Britain forecast to rise to £1,736 a year for average dual-fuel bill, according to Cornwall Insight

Government-ordered inquiry into the sector turned its attention to Australia’s biggest supermarket on Monday

Analysts say market is still relatively busy despite decline of 1.4%, which is unusually high for this time of year

Criminals using AI to trick shoppers as data shows more than £11.5m lost to fraud during festive period last year

Carlos Cuerpo calls on G20 leaders to act and says election results show citizens want redistribution of wealth

Legislation will be drafted to ensure consumers find it easy to exit unwanted signups and to get a refund

Prime minister wants bilateral at G20 to lead to closer ties with China, which he sees as key to faster growth

Exclusive: Senior managers say they are forced to press ahead with orders for vital items without approval

Exclusive: Company has failed to tackle serious safety concerns or upgrade vital IT systems, Guardian investigation reveals