The present edition became necessary due to the rapid globalization of economic transactions and the recourse of states to international economic cooperation through bilateral and multilateral agreements. It is a timely and systematic study of international economic law. At the beginning, international trade law is presented, based on the agreements concluded during the establishment of the World Trade Organization. Special reference is made to the General Agreement on Tariffs and Trade (GATT), the Agreement on Agriculture, the General Agreement on Trade in Services, and the Agreement on Government Procurement. Then, international investment law is examined, specifically the concept of foreign investment, the regulations of the GATS and TRIMS Agreements, the protection of intellectual property rights according to the TRIPS Agreement, the structure and functioning of the International Centre for Settlement of Investment Disputes (ICSID), and the Multilateral Investment Guarantee Agency (MIGA). Finally, provisions related to international monetary and credit law are presented, particularly the structure of the international monetary and financial system, with special reference to international intergovernmental fora (G-10, G-7, G-20), international economic organizations, as well as sources of international monetary and financial law (codes of good practices, principles of corporate governance, international accounting standards). In this context, the structure and functioning of the International Monetary Fund are examined, and international banking law is presented with an emphasis on banking supervision, exercised through the Basel Committee. The work is complemented by a rich bibliography, both foreign and Greek, websites, as well as appendices with the full text of the agreements of the World Trade Organization, the Articles of Agreement of the International Monetary Fund, and reports related to international banking supervision. It constitutes a comprehensive theoretical and practical tool for every researcher of international economic law.