The London-based Institute for Economic Affairs (AEI) from its beginning undertook an extensive publishing program to push forward its free-market ideology. Among its publications was one particular paper, which had a direct and immediate political impact. Published in 1960 "Resale Price Maintenance and Shoppers' Choice" by Basil Yamey argued for the abolition of Resale Price Maintenance, which by fixing prices in shops prevented large stores from necessarily under-cutting smaller shops. Yamey argued that a free market in shop prices would save the shoppers £180,000,000 a year, and prices would fall by five percent.
The publication of Yamey's paper was timed to coincide with a period of public debate on the subject to ensure maximum impact, and Yamey's suggestions were taken up by the incumbent Conservative Government. Although the Abolition of Resale Price Maintenance by
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Aeneas Tacitus, a Greek military scientist and cryptographer, invented an optical communication system that combines water and beacon telegraphy. Torches indicated the beginnings and the ends of message transmissions while water jars were used to transmit the messages. These jars had a plugged standard-size hole drilled on the bottom side and were filled with water. As those who sent and those who received the message unplugged the jars simultaneously, the water drained out. Because the transmitted messages corresponded to water levels, the sender indicated by torch signal that the appropriate water level has been reached. It is a disadvantage that the possible messages are restricted to a given code, but as this system was mainly used for military purposes, this was offset by the advantage that it was almost impossible for outsiders to understand these messages unless they possessed the codebook.
With communication separated from transportation, the distant became near.
Tacitus' telegraph system was very fast and not excelled until
For further information see Joanne Chang & Anna Soellner, Decoding Device,