The design of intelligent trading agents, mechanisms, and systems has received growingattentionin the agentsandmultiagentsystemscommunities in ane?ort to address the increasing costs of search, transaction, and coordination which follows from the increasing number of Internet-enabled distributed electronic markets. Furthermore, new technologies and supporting business models are - sulting in a growing volume of open and horizontally integrated markets for trading of an increasingly diverse set of goods and services. However, growth of technologies for such markets requires innovative solutions to a diverseset of - isting and novel technical problems which we are only beginning to understand. Speci?cally, distributed markets present not only traditional economic problems but also introduce novel and challenging computational issues that are not r- resentedin the classiceconomicsolution concepts.Novelto agent-mediatedel- tronic commerce are considerations involving the computation substrates of the agents and the electronic institutions that supports, and trading, and also the human-agent interface (involving issues of preference elicitation, representation, reasoningandtrust).Insum,agent-mediatedelectronictraderequiresprincipled design(fromeconomicsandgametheory)andincorporatesnovelcombinationsof theories from di? erent disciplines such as computer science, operations research, arti?cial intelligence and distributed systems. The collection of above-mentioned issues and challenges has crystallized into a new, consolidated agent research ?eld that has become a focus of attention in recent years: agent-mediated electronic commerce.

 This book constitutes the thoroughly refereed post-proceedings of the 4th International Workshop on Agent-Mediated Electronic Commerce, AMEC 2002, held in Bologna, Italy in July 2002 during the AAMAS 2002 conference. The 20 revised full papers presented together with an introductory survey by the volume editors were carefully selected and improved during two rounds of reviewing and revision. The book gives a unique overview of the state of the art of designing mechanisms and systems for agent-mediated e-commerce- The papers are organized in topical sections on electronic auctions, negotiations, and electronic markets.

I wholeheartedly recommend Food Allergies.
--Christopher M. Foley, M.D.
""A powerful key to health. Dr. Walsh's principles have revolutionized my personal health.""
--Margaret L. Williams, D.C.
""The information in this book demystifies food and chemical allergies and gives patients courage.""
--Loren C. Stockton, D.C.
""This book will help many people with symptoms and discomforts they have had for a long time.""
--Walid A. Mikhail, M.D.
Food allergies can be subtle, insidious, and dangerous. Every year millions of people suffer from migraine headaches, persistent coughs, sore throats, eczema, abdominal discomfort, tiredness, and irritability-and don't realize that their symptoms come from the food they eat. This book-the first comprehensive book on food allergies written by a noted allergist-helps us understand how different foods cause pain and discomfort and tells us how to identify the foods that have been afflicting us-so we can avoid them before the symptoms strike. In Food Allergies, Dr. William Walsh shares his extensive knowledge about the cause of food allergies, which foods and chemicals to avoid, and, ultimately, which foods will help you feel your very best. Filled with dozens of enlightening case studies and engaging writing, this unique guide offers a detailed, easy-to-follow diet tailored for adults and children who may be prone to allergies. It also includes clinically tested plans for cooking and advice on how to avoid troublesome foods at the store and when eating out.

"I wholeheartedly recommend Food Allergies."

–Christopher M. Foley, M.D.

"A powerful key to health. Dr. Walsh’s principles have revolutionized my personal health."

–Margaret L. Williams, D.C.

"The information in this book demystifies food and chemical allergies and gives patients courage."

–Loren C. Stockton, D.C.

"This book will help many people with symptoms and discomforts they have had for a long time."

–Walid A. Mikhail, M.D.

Food allergies can be subtle, insidious, and dangerous. Every year millions of people suffer from migraine headaches, persistent coughs, sore throats, eczema, abdominal discomfort, tiredness, and irritability–and don’t realize that their symptoms come from the food they eat. This book–the first comprehensive book on food allergies written by a noted allergist–helps us understand how different foods cause pain and discomfort and tells us how to identify the foods that have been afflicting us–so we can avoid them before the symptoms strike. In Food Allergies, Dr. William Walsh shares his extensive knowledge about the cause of food allergies, which foods and chemicals to avoid, and, ultimately, which foods will help you feel your very best. Filled with dozens of enlightening case studies and engaging writing, this unique guide offers a detailed, easy-to-follow diet tailored for adults and children who may be prone to allergies. It also includes clinically tested plans for cooking and advice on how to avoid troublesome foods at the store and when eating out.