this is turning out to be a weird election opinion polls gyrating, reputations fluctuating, the unpredictable quickly becomes conceivable, or not. there s been farce, and sadly, there has been more tragedy in this campaign than we ve experienced before. yet, a week to go to the vote, and it feels as though some of our structural problems have yet to get a mention. so we re going to start with one tonight, even at the risk of looking like we are off the subject of the campaign. the question is how we deal with britain s lopsided, low productivity economy? for all the rhetoric of us being the fifth, or is it now sixth largest economy in the world, it s not firing on all cylinders. do the labour and conservatives parties really have any idea as to how to improve things? we ll ask them that, and some other questions. but first, a quick look at the journey we ve taken, and the problem we ve arrived at. through the monstrous scenery of slag heaps, chimneys, piled scrap iron, fo