About divergent and convergent models

Convergent models, like the agroecological systems, commonly produce a diversity of goods that are normally traded in local and regional markets.
Which could be the consequences, in terms of their sustainability, for these agroecological systems to get into the major global high-demand markets?
What kind of previous work must be done with these systems in order to reduce their  probability of conversion into an intensive high-input systems when they have access to the global market?