It came after the minutes from the Bank's latest Monetary Policy Committee meeting revealed that the idea of cutting the interest rate banks are paid on the reserves they hold there was not discussed this month. The pound has lurched lower in recent weeks, thanks in part to speculation that the Bank will impose charges on banks for holding excessive amounts of cash in reserve at its vaults. Under QE, it is pumping £175bn into the economy, but much of this cash is sitting in banks' reserve accounts rather than being recycled and flowing around the broader economy.

 

The suspicion that the Bank will soon take action to mitigate this has pushed down market interest rates sharply and contributed to an almost 5pc fall in the pound against other leading currencies. It has caused gilt prices and short-term interest rates to fluctuate wildly in recent weeks.

The Bank's seminar, chaired by deputy Governor Charlie Bean, alongside chief economist Spencer Dale and markets director Paul Fisher, is intended to clear up this confusion. It sparked anticipation in the City not merely because the Bank has a reputation for extreme secrecy, but because some suspect it may come alongside an announcement over the Bank's reserves policy. Others suspect the Bank is concerned that many think either that QE amounts to printing money, much as Zimbabwe and Weimar Germany did, or that it simply is not working.