When people talk about the economic legacy of Margaret Thatcher, there seem to be two schools of thought. Some see her as the UK’s saviour, others point to North Sea oil and say she was lucky. They say she only managed what she did thanks to the vast stream of revenue flowing in from our right hand side, from that cold sea. They then go a step further and say we wasted the money. Now PricewaterhouseCoopers has joined the debate. According to John Hawksworth, PWC's chief economist, if, instead of blowing the money from the North Sea we had saved it, then right now the UK would be sitting on a sovereign wealth fund worth £450bn, bigger than the funds in Russia, Kuwait and Qatar combined. The Guardian reported Mr Hawksworth as saying, “Since oil revenues were greatest in the first half of the 1980s, this was also when this potential effect was greatest. In practice, had the oil revenues not been there, it seems most likely that some combination of higher taxes and lower current spending would have taken the strain, although we can never know for sure." Apparently, in Norway much of the money was put away, and today the country is sitting on an impressive sovereign wealth fund. Mr Hawksworth added, “Without such a fund, it is hard to dispel the suspicion that, in 30 or 40 years time, many of us may be sitting around looking enviously at the Norwegians and others and wondering: where did our oil money go?" There is no doubt we are not saving enough. The economic boom of recent years has been funded in part at least by consumer and government borrowing. But equally, we have to ask the question: what would have happened to the UK without Thatcher’s reforms? It is a contentious point, and for every person who believes Mrs T transformed Britain for the better, there is someone else who