Have a look the svg images here. This is from the touchstone (TUC think tank) blog. I’m pretty shocked by it to be honest. Its pretty clearly showing that where there is high unemployment relative to job vacancies Labour have seats, where there is low unemployment relative to vacancies the Tories have seats. Now I’m unsure what the exact relation here is, but I think its still pretty interesting. (It also runs against the beliefs that many of us on this blog have that questions of political representation are relatively unimportant.)