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...In 1948, Columbia Records launched a 12in disc called the LP, made of hard-wearing Vinylite, that could play up to 22½ minutes of music on each side at 33⅓rpm....
...For a company like Rural that is traded on a major exchange, ―[t]urnover measured by average weekly trading of . . . 1% would justify a substantial presumption‖ of market efficiency. 5 Bromberg et al., Bromberg...
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