This week, the chief executives of Tesco, Sainsbury's and Marks and Spencer, convened in London for the IGD's annual convention where the likes of Philip Clarke, Justin King and Marc Bolland discussed the key issues facing the industry. Elsewhere, William Jackson Food Group expressed its delight at securing ownership of Abel & Cole, German food company Zertus bought confectioner Zetar, while Paramount Foods went into the hands of administrators.