Of all the measures talked up ahead of the Budget, the reannouncement of a ‘radical’ review of the business rates was the least concrete in content but the most important in potential impact on the domestic economy, and especially on business investment. This column has banged on for years about the iniquity of a system that imposes the highest local taxes on businesses of any EU country, based on pre-crash rental assessments and bearing no relation to the value of diminishing local authority services.