Global BusinessNvidia-backed data centre firm scraps IPO as AI valuation concerns deepenFirmus said it had made the decision due to "recent market volatility and prevailing market conditions".Why are more roofs not made of solar tiles?Solar tiles were touted as an attractive alternative to solar panels - why have they not taken off?AI chip boom pushes Samsung profits to record $80bnThe tech giant is also expected to get a boost from its latest folding devices that were launched in August.Asahi and Kirin among Japan beer giants raided over alleged price-fixing cartelJapan's Fair Trade Commission conducted searches of the country's largest beer-makers.How oil-rich Alberta's economy might fare if it broke away from CanadaAlbertans vote this month on staying in Canada or moving ahead to a binding independence referendum.Features and AnalysisHow global trade and oil prices could be hit by Houthi advanceYemen's Houthis have seized territory near the Bab al-Mandab Strait - a key trade gateway for oil and global shipping.How does the US national debt affect consumers around the world?The debt has more than doubled in a decade to reach a milestone $40tn (£29.4tn), Treasury figures show.Is Italy the new tax haven for the global rich?With the war in the Middle East hurting Dubai, Italy has become an attractive location for wealthy individuals from France and elsewhere.The decline of the French bistroIn France, traditional restaurants are disappearing – the French blame high costs and the "Americanisation" of eating habits.