Confidence is an elusive but essential determinant of the course of the economy ignored by the doomsterism of Rachel Reeves. Andy Burnham could change that, writes Paul Ormerod The UK economy has the potential to resume, for the first time this decade, a decent rate of growth. This is not some nostalgic tribute to the policies of Rachel Reeves. Indeed, her whole approach as Chancellor has hindered rather than helped growth. The key point is th…