Week ahead in business and economics: March 18 Ark Therapeutics Group, EKF Diagnostics Holdings, John Laing Infrastructure, LMS Capital, M&C Saatchi, TEG Group Nanoco Group Berkeley Group Holdings William Hill (EGM) Tuesday March 19 Analysts at Morgan Stanley expect trading at Spirit's managed pubs estate to have slowed further during the second quarter of its financial year due to the poor winter weather. The broker is pencilling in like-for-like revenue growth of 3.8pc for the full-year at the managed business while it expects a 2.2pc contraction in like-for-like net income at Spirit's leased pubs division. Bioquell, Cairn Energy, Hydrodec Group, Hydro International, Johnston Press, Mears Group, Source Bioscience, T Clarke, UTV Media, Xaar J Sainsbury, Spirit Pub Co CPI and RPI inflation, meeting of the Financial Policy Committee Beale (AGM), Britvic (AGM), Corero Network Security (EGM), Domino Printing Sciences (AGM) Wednesday March 20 ENRC, the FTSE 100 Kazakh-focused miner, has already warned that it will unveil "significant" asset writedowns in its annual results. Deutsche Bank analysts think the writedowns could exceed £1bn, and expect pre-tax profits to fall to £895m, from £2.75bn. Management will be pressed on reports that ENRC is working on a rights issue to shore up its balance sheet. Investors will also want an update on the progress of the Serious Fraud Office's investigation into the company. Analysts at Liberum Capital said: "News in this regard is likely to continue to weigh on shares until the inquiry has completed and the company has satisfied investor concerns." Charles Taylor, Eurasian Natural Resources Corporation, Greggs, IQE Bowleven, Smiths Group Budget, Monetary Policy Committee meeting minutes, unemployment Chemring Group (AGM), Safestore Holdings (AGM and EGM) Thursday March 21 Irn-Bru maker AG Barr will come under questioning over its continued commitment to a £1.4bn merger with Britvic, which has been delayed after the Office of Fair Trading referred the tie-up to the Competition Commission. Shares in both groups fell when the investigation was announced in February and some analysts have speculated that Ribena and Lucozade, which have been put up for sale by GlaxoSmithKline, could also be a good - and potentially less problematic fit - for AG Barr. Consensus is pointing to full year revenue at AG Barr of £251.1m, up from £237m a year ago, while pre-tax profit is expected to reach £33.9m, up from £33.6m. Fashion retailer Next is expected to post a slight increase in annual sales from £3.44bn to £3.58bn in its annual results this week, with pre-tax profits up 7pc to £618.4m. Lord Wolfson, chief executive, is also likely to comment on the state of the economy and update on trading in the last few weeks, when retailers have been impacted by snow across the UK. Analysts at UBS said they would be looking out for comment from management on share buybacks, with about £250m forecast in 2013-14., as well as news on supply chain inflation due to higher cotton prices and the company's growth online. They added that January's snowfall may have had a "modest impact" on the retailer. AG Barr, Alliance Pharma, APR Energy, Arbuthnot Banking, Brainjuicer Group, Emis Group, Lamprell, Mecom Group, Next, Premier Farnell, Premier Oil, PV Crystalox Solar, Scisys, Servicepower Technologies, Skyepharma, Sopheon, Ted Baker United Utilities Group Institute for Fiscal Studies post Budget analysis, public sector borrowing, retail sales, CBI industrial trends Agriterra (AGM), Jarvis Securities (AGM) Friday March 22 Moss Bros Group, Northern Rock Asset Management, Songbird Estates, Stanley Gibbons Group, Tawa Imperial Innovations Group, Produce Investments Euromoney Institutional Investor, Homeserve Kibo Mining (EGM)