The Concept Design of a 21st Century Preferential Trade Agreement describes the current status and possible future evolution of trade agreements. The individual contributions provide fine-grained analyses of the various challenges trade agreements face and how these differ across countries. The book brings together leading researchers from international law and international relations to provide conceptual and empirical insights to inform the ongoing reform debates. By taking stock of scholarly advances, the book further aims at stimulating cross-fertilization in the study of trade agreements in the field of international economic law.