“Your editorial (9 December) advocating proportional representation for the Commons notes that alternatives to first past the post (FPTP) are already in use in the UK. The more proportional additional member system, which has produced stable government in Scotland and Wales, was introduced in 1999 as a result of the Scottish constitutional convention, which preceded devolution.

Gordon Brown’s commission (Think our plan to fix British politics is a pipe dream? Think again, 6 December) rejected the case for a UK constitutional convention to codify its recommendations and omitted consideration of electoral reform for the Commons.”

Dr Anthony Isaacs

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