Temporal
Copyright protection is limited in time. Many countries have adopted a term of protection that starts at the time of the creation of the work and ends 50 years (in some cases 70 years) after the death of the author. Under some national laws exist exceptions either for certain kinds of creations or for certain uses. After the protection has expired works pass into the public domain. In recent years a tendency towards the lengthening of the term of protection has emerged.
Geographic
The owner of a copyrighted work is protected against acts restricted by copyright under the law of a certain country. To gain protection against such acts in other countries he must refer to the respective national legislation. If both countries are members of one of the international conventions on copyright, the practical problems arising from this geographical limitation are eased.
Non-Material Works
In some countries works that are not fixed in some material form are excluded from copyright protection. Also under certain national legislations, the texts of laws and decisions of courts and administrative bodies cannot be copyrighted (which is possible in several countries; then the government is the owner of the copyright in such works and can exercise his rights in accordance with the public interest).
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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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Nero's full name was Nero Claudius Caesar Augustus Germanicus (37-68 AD). Nero was Roman Emperor from 54-68 AD; during the first years in power he stood under the influence of his teacher