This ought to be the primary purpose of trade deals. Currently agreements like the TTIP and TPP are written with the primary purpose of advancing the interests

This ought to be the primary purpose of trade deals. Currently agreements like the TTIP and TPP are written with the primary purpose of advancing the interests of the corporations who secretly shadow-write them and the secondary interest of increasing net trade (e.g. ensuring that you can buy a t shirt at hot topic for $4 instead of $6).