In association with IRI, the just-food international basket shows the cost of a typical basket of goods in eight markets every quarter.

The data also outlines trends in branded and private-label pricing, as well as the volume sold on promotion.

The latest set of numbers shows data for the third quarter of 2014.

Tim Eales, director of strategic insight at IRI, analyses the figures in an exclusive column here.

Cereals 500g Single Medium Box
Rice  500g Single Packet
Canned tuna fish 185g Single Can
Ambient wet soup 400g Single Can
Ambient mayonnaise 400g Single Jar
Frozen pizza 400g Single Average Size Pizza
Frozen burger 224g 4 Pack
Yoghurts 500g 4 Pack
Margarine 250g Single Tub
Butter 250g Single Packet
Wet cat food 400g Single Can
Milk – ambient 568ml One Pint
Beer 440ml Single Can
Fruit juices – ambient 1000ml Single Carton
Energy drinks 250ml Single Can
Tea bags 500ml 160ct Packet
Colas 1320ml 4 cans

The cost of typical basket rose in three markets, fell in three and was flat in two year-on-year in the third quarter of 2013. Interestingly, prices rose in Italy, which did see the proportion of volume sold on promotion also increase.

The price gap between national brands and retailers’ own label continued to shrink, according to our relative price index.

A mixed bag on promotions, with the volume sold on offer rising in three markets – Spain, Italy and, notably, discount-heavy UK – but flat and falling elsewhere.