THE Government's flagship education action zone policy has failed to involve business in inner-city schools, a Labour-affiliated think-tank has found. Many of the firms that are supposed to be partners in the zones have "minimal or no participation" in them, according to the Institute for Public Policy Research. Few EAZs attracted more tan pound;250,000 a year in cash sponsorship from private companies or voluntary groups. As revealed in The TES, the Government has quietly halted the experiment, limiting the zones to the existing 73. A Department for Education and Employment spokesman said the number was three times higher than the Government originally envisaged.