Blog
Changes in Real Prices
24th January 2011
This is a graphic I use each year when looking at changes over time in indices of consumer prices for different goods and services. Using data drawn from the published Retail Price Index since 1988 (the base year) I print this chart out and explore in classroom discussion some of the economic factors behind the divergence in prices for rail fares, cigarettes, household repair services, clothing and electrical items. We discuss the impact of changes in indirect taxes, unit labour costs, economies of scale, trade and globalization effects and the intensity of competition among other factors. Eagle-eyed students spot the upturn in clothing prices and link it to the rising world price of cotton. Others notice the strong seasonality in clothing prices and the annual hike in rail fares!
I have copied the latest chart into a PowerPoint file for colleagues who might want to use it
Real_Prices.pptx
Geoff Riley
Geoff Riley FRSA has been teaching Economics for over thirty years. He has over twenty years experience as Head of Economics at leading schools. He writes extensively and is a contributor and presenter on CPD conferences in the UK and overseas.