In his speech to the Edinburgh Book Festival Gordon Brown pointed out that, in an "independent" Scotland, the revenues available to the Government would be reduced and there would inevitably have to be tax rises or cuts in public services: more likely both ("Brown's dire warning on the cost of independence", The Herald, August 14).

You have published three letters in response, all of which attack Mr Brown personally and his record in Government, but none of which produces alternative figures or addresses the essence of his arguments: arguments which, by the way, also apply to the SNP's fallback proposals for full fiscal autonomy or maximum devolution (Letters, August 15).

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