Effect of emulsifier quantity on emulsion droplet size?

technobot

(I hope this is the right forum..)

Given all other factor are the same, what would be the effect of the amount of emulsifier on the size of droplets in the emulsion? I would expect that more emulsifier would mean more interfacial surface area, which would in turn mean smaller droplets. Would this be a correct assumption?

Also, is it possible that some of the emulsifier will not enclose any of the dispersed phase (maybe forming some empty micelles or something..)?