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HMcM and the Greggs Pasty Index: G-PI, how much are you worth?
Setting up the Index: HMcM is set to introduce a new measure of Standard of Living, the G-PI (Greggs Pasty Index). This will compliment the existing UK Mars Bar Index MBI) a concept introduced by Nico Colchester in the 1980's (see below for further details).
Why Pasties? The pasties are made to a consistent recipe, are sold in standardised shops, and taste nice - the perfect combination to measure the cost of living. The cost of the pasty clearly reflects not only the ingredients but also local rents, rates, energy and labour costs, adding a regional dimension not provided by the MBI.
We Need Your Help: The HMcM pasty-detector van is already scouring the country collecting details, but we are asking for your help to extend the scope of the survey. The HMcM team will be posting regular price updates to the web site. So if you would like to join in, please send us the following G-PI data:
  • Greggs Store Location;
  • Pasty Type (Cornish, Chicken, Cheese, etc - No sausage rolls please);
  • Price (Pence or Mars Bars (MBI) at 2004 exchange rate - see below).

Emails to G-PI@hmcm.co.uk please.

The UK Mars Bar Index (MBI): In his informative and entertaining articles in the Financial Times (1981 and 1983), the late Nico Colchester introduced the concept of using the Mars Bar as a standard unit of currency. He argued that the recipe has stayed pretty much the same, as has the production, distribution and retailing methods. Therefore, other prices could be valued in terms of the typical price of a Mars Bar (1MB), allowing direct comparisons to be made over time.

Read Nico Colchester's articles at: 1981 Article in FT or 1983 Article in FT

The MBI in 2004: Nico Colchester's table of 1983 is shown below, with an updated entry for 2004.

The UK Mars Bar Index

Year Mars Bar (£) Morris 8 / Mini / BMW Mini (£) Roast Beef at Simpsons (£) Typical Graduate Starting Salary (£)
1940 0.83p £160 = 19,200MB 20p = 24MB £275 = 33,132MB
1960 2.5p £530 = 21,200MB 43p = 17MB £775 = 31,000MB
1981 15p £2,900 = 19,333MB £5.95 = 39MB £5,700 = 38,000MB
1983 17p £3,100 = 18,235MB £6.45 = 38MB £7,040 = 41,411MB
2004 35p £10,300 = 29,430MB £19.95 = 57MB £19,000 = 54,286MB

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