Economic arguments for organic

Hi folks,

I'm looking for sources to back up the notion that organic agriculture can work economically against conventional farming, at scale, and even beat it economically.  

I have basically one book which discusses this, "Food Futures Now" (2008).  It's a good book, but I'm looking for anything more up to date.  Can anyone make any recommendations?

Any pointers much appreciated.

Maybe look for some scientific papers on the subject.
If it was a reality there may be books about it, I believe it may not be a reality and just as people will pay extra for something which they believe is better, this may also apply to organic food.
What do you think?