Prolation Prolation Prolation is a term used in the theory of the mensural notation of medieval and Renaissance music to describe its rhythmic structure on a small scale, as opposed to "tempus", which described a larger scale. The term "prolation" is derived from the Latin "prolatio", first used by Philippe de Vitry in describing Ars Nova, a musical style that came about in 14th-century France. Prolation, together with tempus, corresponds roughly to the concept of time signature in modern music. Prolation describes whether a semibreve (whole note) is equal in length to two minims (half notes) ("minor prolation" or "imperfect prolation";
Criticisms of the labour theory of value super profit (a rate of profit above the average rate of profit of the economy as a whole). As a result, capital is attracted to that sector, production increases, and prices fall until the super profit has been competed away. The resulting prices of production are via transformation from labor values into prices based on labor times. According to marginalism, value is subjective (since the same item—leisure time, consumption goods—have a different marginal utility to different consumers, or even to the same consumer under different circumstances) and therefore cannot be determined simply by measuring how much labor went into the