"If that question seems odd to you, you are one of the majority in the UK who think the Conservatives are better at managing the economy than Labour. Why do people think this? My guess is that it is very simple. The financial crisis happened while Labour was in power. This led to the largest recession since the Great Depression.
But surely everyone knows that the financial crisis was a global phenomenon that started in the US? Surely everyone knows that if the Conservatives had been in power there would have been just as little financial regulation, so the impact of the crisis on UK banks would have been much the same?
...
the point I want to make here is fairly simple. Once we recognise that the financial crisis was a global event, then the three remaining major departures from trend growth happened under Conservative led administrations. In all three cases they can be associated with poor policy decisions taken by those administrations: money supply targets under Thatcher, ERM entry under Major, and austerity under Osborne.
So the idea that the Conservatives are more competent at macroeconomic management is a myth, and if anything the opposite appears to be true."
Details here:
mainly macro