Tables 1 and 2 below are drawn from the article by Bunn P,. Ellis C., (2012), “How do individual UK producer prices behave?”, The Economic Journal, 122, 558, F16 – F34 The aim of the research is to investigate the frequency with which UK producer prices change. In order to carry out their investigation the researchers use microdata that underpin the UK Producer Prices Index collected each month by the Office for National Statistics. Why is this research of interest for macroeconomists in general and UK policy makers in particular?

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