Tape reader and tape reader

In jargon, of persons who persistently sit in front of a computer screen, monitor prices and turnover, and seek to deduce the market trend from them (a person who monitors up to the point of exhaustion a stream of price quotations and exchange transactions in order to predict the future market direction).

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University Professor Dr. Gerhard Merk, Dipl.rer.pol., Dipl.rer.oec.
Professor Dr. Eckehard Krah, Dipl.rer.pol.
E-mail address: info@ekrah.com
https://de.wikipedia.org/wiki/Gerhard_Ernst_Merk
https://www.jung-stilling-gesellschaft.de/merk/
https://www.gerhardmerk.de/