Crazes and crashes – About unpredictable economics. Dutch. Rages en crashes – Over de onvoorspelbaarheid van de economie (Bloemendaal: Aramith/ Gottmer Becht, 192 p., w. sources. ISBN 90-6834-140-5).

Popular book about ‘opinion dynamics’ and markets, about hypes and scares. Separate chapters on profits from serendipitous inventions, unexpected fads and fashions, sudden bubbles and bursts on the stock market, damage through product rumours and cultural mistakes, with a final chapter on unpredictability and chaos theory.

Presented at a large manifestation on Economics for a wider public, organized by the National Science Information Board PWT, in the building of the former Amsterdam Stock Exchange.

Tv Bk. Itw. Jan Lenferink, Tv Puree, RTL5 (9'19):  https://www.youtube.com/

This first stab at chaos theory was later elaborated much further in Collective behavior and public opinion – Rapid shifts (2003, 1999).