Theunionmayhavebroughtforwardanumberofcomplexproposalsbuttheireffectscouldinallcasesberejectedasdefactoliberalizingsinceallproposalshadacommonstructure:theunionofferedliberalizingoneareabutalwaysinreturnofconcessionsinanotherspecificareathatwouldrendertheformerliberalizationworthless.
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The union may have brought forward a number of complex proposals but their effects could in all cases be rejected as de facto liberalizing since all proposals had a common structure: the union offered liberalizing one area but always in return of concessions in another specific area that would render the former liberalization worthless.