Today's Financial Times contains another downbeat article about the UK's QE. One fund manager quoted is disappointed that no effect on RPI trends is yet apparent. Since the latest RPI number refers to a period only two months after QE started, while monetary changes typically take two years to have their full impact on prices, this might be considered unsurprising.

Another interviewee correctly links an assessment of the success of QE with money supply figures. Unfortunately, he proceeds to ignore the recent broad money pick-up, referring instead to weakness in bank lending to non-financial corporations. Money and credit are routinely confused in discussions of QE, with few commentators aware that money leads the economy while credit lags.

Contributors to the FT article may not have read the Bank of England's excellent explanation of the aims and mechanics of QE, available on its website. As well as expanding QE to £150 billion at next week's meeting, the MPC might consider stepping up its education programme.

Further evidence that QE is beginning to work is provided by the Bank's second-quarter Credit Conditions Survey released today, showing that a majority of banks made more credit available to mortgage borrowers and companies over the last three months, with a further improvement expected this quarter.

The results of similar surveys in other major economies are usually expressed in terms of the net percentage of banks tightening rather than loosening credit. When the Bank's survey is converted to the same format, the UK results compare favourably – see chart for corporate lending responses. This reflects the combined impact of QE and lending commitments made by the Lloyds Banking Group and the Royal Bank of Scotland as a condition of their participation in the Asset Protection Scheme. (The UK is the first country to publish a second-quarter survey.)