This book sets out a framework for determining the value and economic viability of a rice hybrid. The book is written for hybrid rice breeders, farmers, millers, seed producers and the managers of hybrid rice development programs. The methodology provides insight into the key factors that drive hybrid value. The economic model is accompanied by tabular and graphical displays that allow the results to be visualized and understood. The model allows global comparisons to be made between countries and regions where hybrid rice is grown.