In the United States, recently the use of soybeans as an energy source has drawn attention. It is concerned in Japan that if the use of soybeans for energy keeps increasing, not only the price of conventional soybeans, which is used for soybean oil, but also the price of non-genetically modified...

This paper examines the efficiency of the Dojima Rice Market established in 1730 in Osaka, and closed in 1869 due to the collapse of Tokugawa Shogunate. It had already been shown that there existed the price mechanism in Dojima. However, the most significant question: Whether the world first...

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