Analysis of prices

In order to evaluate the price range of these three brands (Head & Shoulders, Le Petit Marseillais, and Elseve), we visited four shops. The price data (in Euros) are presented in the following table. Moreover, in the table, we have added a few other brands to present a picture of the overall market.

Price range (in Euros)

Shampoo	Casino	Monoprix	Spar	Carrefour
Le Petit Marseillais	3,7	3,02	3,77	2,6
Elseve	4,65	4,24	4,83	4,58
Dessange	5,14	4,44	5,46	4,51
Dop	2,45	3,6	2,58	1,89
Head & Shoulders	5,07	5,09	4,74	4,8
Private lebel	1,77	1,72	1,86	0,82
Average price	3,80	3,69	3,87	3,20

According to our observations, we can conclude that the most expensive shampoo is Head & Shoulders, which is mainly due to the fact that the volume of packing is 400g, while other shampoos’ volumes are 250g. Interestingly, if all of the shampoos contained 250g, among the three of our brands, Head & Shoulders would get the lowest price; then Le petit Marseillais; and Elseve would be the most expensive. Finally, it is important to notice that prices vary slightly depending on formats and stores.

Price range of Le Petit Marseillais, Elseve, and Head & Shoulders (in Euros)