Okay this is a subject that is much discussed amongst Arsenal fans, especially was Arsene Wenger usually favours buying young or cheap players that are expected to improve as they mature.
I have found this calculator from the CIES Football Observatory which calculates each player’s worth based on an econometric model used to analyse over 1,500 transfers since 2010. Key determining factors include a player’s age, the length of their contract and recent performances.
So you would expect Mesut Ozil or Alexis Sanchez, as they were our most expensive buys and considered our best players, to be worth the most. According to CIES, Mesut Ozil is worth 51m euros, which equals £37.3m which is less than we paid for him! In contrast Tottenham’s Harry Kane is valued at 91.3m euro (£66.8m) mostly because of his age I guess.
Alexis Sanchez is our most valuable player at 81.9m (£59.9m), while our next five top-valued are: Santi Cazorla (£31m), Olivier Giroud (£30.2m), Aaron Ramsey (£29.4m), Hector Bellerin (£24.2m) and Alex Oxlade-Chamberlain (£23.6m).
These are all the Gunners in the Top 100 rated which means that the rest are only worth £20m or less, including Theo Walcott, Jack Wilshere and Joel Campbell.
Do you think these are fair assessments?