I am grateful to the Minister for being so generous with his time. Does he agree that some quite significant changes are taking place in the hierarchy of indexes that can be used for uprating? For example, earnings, which was always thought to be by far the highest measure, is at the moment the lowest measure. In addition, changes in the housing market have affected the CPI and RPI differential. It is therefore a moving picture. It is not as straightforward as saying, “History tells the whole story.”
http://www.theyworkforyou.com/debates/?id=2012-02-23a.1040.0&s=speaker%3A10267#g1042.3