Everyone from Kim Kardashian and Margot Robbie to Rosamund Pike and Cheryl Fernandez-Versini have chopped off their long locks recently , making shorter hair a bona fide trend . But the rise in these shorter haircuts is n't just down to their flattering face-framing effects . According to the Sunday Times , the growing popularity of shorter haircuts is also sign of economic recovery , since they require more frequent trips to the salon and are therefore more pricey to maintain . Shorter haircuts , like Cheryl Fernandez-Versini 's new bob ( right ) , are an indication that the economy is in recovery . Rosamund Pike wore a longer style in Gone Girl ( left ) but recently she went for the chop ( right , in February ) Celebrity hairdresser Stuart Phillips , whose clients have included Serena Williams and Jamie Oliver , told the newspaper that he believes shorter hairdos are a sure sign that the economy is bouncing back . He said : 'Products are flying off the shelf , more than they used to even a few months ago . ' And it 's not just the fact that shorter styles require more sprays and gels . The upkeep of a lob ( long bob ) or pixie crop is also time-consuming , with some women having to visit the salon every four to six weeks to maintain the look . Margot Robbie went from one dramatic hairstyle ( left , in March 2014 ) to another ( right , in February 2015 ) Jourdan Dunn ( left , in July 2014 ) made waves when she got her chin-length lob ( right , in February 2015 ) Kristen Stewart transformed her long auburn locks ( left , in May 2014 ) to an equally daring short style ( right , in February 2015 ) By contrast , women with longer hair can leave it a few months before going in to top up their trims . 'With short hair you need to keep it in shape , ' explained Mr Phillips . 'With long hair , a lot of women tend to leave it months on end . ' Cheryl Fernandez-Versini , who is the face of L'Oreal , debuted her new layered bob just last week on the Graham Norton Show . And Aussie actress Margot Robbie chose the Oscars to show off her new shorter blonde look . A-list trends may not be the best indication of a pattern in the real world , but according to hairdresser Drew Foster , who owns Foster Hair & Beauty in London 's Shoreditch neighbourhood , non-famous women are also following suit . Sienna Miller traded in her hippie-chic long waves ( left , in March 2014 ) for a side-swept lob ( right , in January ) Scarlett Johansson had longer locks in March 2014 ( left ) . But now , she has a very edgy pixie cut ( right , February ) 'Girls are going shorter , ' he told the MailOnline , adding that his salon charges about £48 for a bob , with women tending to come in every six weeks to maintain the style . But Mr Foster feels that the trend is more a sign of modernity than of economic change , since women visit salons even during a recession because they see it as a way of treating themselves . In any case , he says he 's definitely a fan of the new It-style . He said : 'It used to be that girls had long hair and men had short . 'Finally it 's 2015 and things have shifted - and I think that 's very exciting . ' It 's not just hair that gets shorter during a recovery - rising hemlines are also an indication that the economy is on the up . And judging by this year 's London Fashion Week shows , where labels including Topshop , Julien Macdonald and Giles showcased leg-baring A-line minis , it 's a trend that is here to stay .
Shorter cuts require more frequent upkeep at the salon , which costs money . Kim Kardashian , Margot Robbie and Sienna Miller have all gone for chop . Rising hemlines on skirts are also indication that economy is on the up .