(ShareCast News) - JD Wetherspoon is expected to report flat full year earnings on Friday after warning that increased labour costs would cut into profit margins.The pub operator in January said that annual profit will be at the low end of market expectations due to higher wage costs.In the trading update, the company said sales at pubs and bars open a year or more rose 3.3% and total sales increased 6.3% in the 12 weeks to 17 January. However, the group's profit margin shrank after it raised minimum hourly pay by 8% in August to attract talent.Numis has pencilled in full year earnings before interest, depreciation and amortisation (EBITDA) of £170.8m, down from £173.9m the previous year. It estimates earnings per share will dip to 48.4p from 48.6p.Numis analyst Tim Barrett said: "Overall we expect full year growth to be flat. Current FY17 guidance is for like-for-like in line with inflation, wages +4% and other costs +1%, implying further margin pressure. Bulls expect price increases to reverse recent negative earnings momentum but we remain cautious."Friday 09 September INTERIMS Deltex Medical Group, Global Ports Investments GDR (REG S) INTERIM DIVIDEND PAYMENT DATE Cineworld Group, Direct Line Insurance Group, Fevertree Drinks, Fresnillo, Globaldata, Hiscox Limited (DI), Informa, Law Debenture Corp., Maven Income and Growth VCT 5, McColl's Retail Group , RM, Spirent Communications QUARTERLY PAYMENT DATE M Winkworth, Real Estate Credit Investments PCC Ltd INTERNATIONAL ECONOMIC ANNOUNCEMENTS Balance of Trade (GER) (07:00) Current Account (GER) (07:00) Wholesale Price Index (GER) (07:00) Wholesales Inventories (US) (15:00) FINALS Wetherspoon (J.D.) IMSS SThree SPECIAL DIVIDEND PAYMENT DATE Direct Line Insurance Group, Lindsell Train Inv Trust AGMS Amur Minerals Corporation NPV, Datatec Ltd. (DI), Highway Capital, Highway Capital, Hornby, Sacoil Holdings (DI), Scholium Group, Schroder Real Estate Investment Trust Ltd, SVM UK Emerging Fund, Victoria UK ECONOMIC ANNOUNCEMENTS Balance of Trade (09:30) FINAL DIVIDEND PAYMENT DATE Ashtead Group, Bilby, Creston, Entertainment One Limited, Lindsell Train Inv Trust, Maven Income And Growth VCT 6 , New Century AIM VCT