How and when did economic and demographic structures change quantitatively and qualitatively in the 6th and 7th centuries?

Degree: 
M.Phil.
Started: 
2012
Author: 
Woudhuysen, George
Time period: 
500 - 700
Supervisor(s): 
Ward-Perkins, Bryan
University: 
Oxford
Department: 
Mod. Hist.