This book is a comprehensive set of questions and answers on the principles of economics. It covers a wide range of topics, including supply and demand, market structures, government intervention, and international trade. The questions are designed to test the reader's understanding of the concepts and to provide practice for exams. The book is an essential resource for students of economics and for anyone interested in understanding how the economy works. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.