Is it "natural" to expect Economics to become a part of the Natural   Sciences?
  We are in the middle of a complex debate as to whether Economics is really a proper natural science. The 'Discussion & Debate' issue of this Euro. Phys. J. Special Topic volume is: 'Can economics be a Physical Science?' I discuss some aspects here. 
Arnab Chatterjee
q-fin.GN physics.soc-ph