Former chancellor Ken Clarke said that Mark Carney had been "left in charge of the shop" due to Cameron's decision to stand down.
Speaking to Sky News, Clarke said: “It would help if they slightly accelerated the process because at the moment what we have out there is total uncertainty.
“Now, uncertainty is bad for the economy, it’s bad for investment, it’s bad for jobs, it increases the risk of recession.
“At the moment, Mark Carney, the governor of the Bank of England, is in charge of the shop, really. He is the only person actually addressing the economic outlook – which is quite, quite worrying – untrammelled by the complications of having to campaign or vote in a leadership election.”
Today Mark Carney warned the UK is entering a period of uncertainty after the vote.
Clarke also called on his Conservative colleagues to bow out of the leadership race if they garnered insignificant levels of support after the first round of voting today.
“The world is full of political leaders, friends of ours who are utterly astonished that we’re going through all this performance. They’re waiting to know what is the British Government now going to do," Clarke added.
“If two or three of the candidates get really tiny numbers of votes and it’s obvious that they’re not going to make the last two, I think they’d be doing everybody a service if they dropped out tonight.”