1 | Page On the Origin of Human Behavior, the laws of Human selection and the structure of current affairs. Adriaan J.P. de Lange PhD, MBA Essential 'modern' human group behavior: trading on a market. Dedicated to my wife Anne-Margot Conijn who set me thinking and had the patience for more than ten years while I was reading and writing. Copyleft & Copyright © 2023 A.J.P. de Lange All parts of this book may be reproduced or utilized in any electronic form or by any electronic means, by virtue of this permission from the author and publisher when properly referenced. However, may NOT be reproduced or utilized in any mechanical form, including printing, photocopying, recording or by any other physical information storage and retrieval system, without prior permission in writing from the author and publisher: Adriaan@ADL.nl. Latest digital copies can be obtained at: http://www.adl.nl/Papers.htm