The book presents several highly selected cases in emerging countries where the production-logistics systems have been optimized or improved with the support of mathematical models. The book contains a selection of papers from the 5th International Conference on Production Research (ICPR) Americas 2010 held on July 21-23 in Bogota, Colombia. The main topic of the conference was "e;Technologies in Logistics and Manufacturing for Small and Medium Enterprises"e; which is perfectly aligned with the realities of emerging countries. The book presents methodologies and case studies related to a wide variety of production/logistics systems such as diary production, auto parts, steel and iron production, and financial services. It is focused but not limited to Small/Medium Enterprises.