In many companies in the province of Tohoku (North-East Japan), stock prices were declining after the East-Japan earthquake. However, on the other hand, some companies’ stock prices rose. We have analyzed the reasons using text mining technologies on web data. In our studies, a combination of a stock price analysis and the text mining of the company can weave unexpected facts like a word associative game. First we found YAMAYA which is an alcoholic wholesalers and retailer company. The headquarters are located in Sendai-city, the capital and biggest city of Miyagi prefecture. Then we conducted text mining for the reason of the company’s increase of stock prices. Finally we found the fact that an increase of alcoholic consumption there may be one of the triggers for the economic reconstruction in Sendai-city. The paper discusses the economic reconstruction processes through increases of stock prices in the Tohoku province.
