Two "classic" studies of the economic history of the wool industry
are Herbert Heaton, _The Woollen and Worsted Industries in Yorkshire 
from Earliest times through the Industrial Revolution_ and
Arthur Cole, _The Woolen Industry in America_.   Richard Goldthwaite
in his _The Economy of Renaissance Florence_ just published (2009) by 
Johns Hopkins U. Press provides a long a footnote on the 
historiography of the Woolen industry into early modern times (this 
is on p.268, fn.4) which includes mention of the Fontana and Gayot 
ed. volume on Wool mentioned in Daniele Parisi's post.  Goldthwaite 
starts his footnote by stating "Virtually every aspect of the [Wool] 
industry in its first three phases, down to the sixteenth century is 
the subject of what has become a classic study in the historiography 
of Florence."

David Mitch