So I'm not sure what you mean by 'imagine the effect on the markets' or 'the effect of the markets on negotiations'. The market's most powerful players are already guiding the legislation. The only people that seemingly aren't allowed to directly guide the agreement are a country's citizens and its smaller market players, neither of whom are allowed a seat at the table.
The pessimist/realist in me suspects the final text will directly reflect this lopsided representation, such that the most powerful will become even more powerful and the least powerful will continue their decline.