Comment on "Non-representative Quantum Mechanical Weak Values"
  Svensson [Found. Phys. 45, 1645 (2015)] argued that the concept of the weak value of an observable of a pre- and post-selected quantum system cannot be applied when the expectation value of the observable in the initial state vanishes. Svensson's argument is analyzed and shown to be inconsistent using several examples. 
Alon Ben Israel and L. Vaidman
quant-ph