This book contains revised versions of papers presented on scientific workshop "Modeling Multi-commodity Trade: Information exchange methods," which took place in November 2010 atWarsaw University of Technology. It summarizes results of the research work supported so far by scientific grant "Methods and architectures of information interchange for electronic trade on infrastructural markets" (see page xi), and some earlier research work on multi-commodity markets modeling. Though partial results of the research were published earlier, the book gives the most complete view on results of our research in the field of modeling the trade on complex multi-commodity infrastructural markets.