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A Casual Analysis of Stock Price Appreciation of Certain Firms After the Great East Japan Earthquake Using Web Text-Mining

Author

Listed:
  • Yukari Shirota
  • Takako Hashimoto
  • Tamaki Sakura

Abstract

我々は2011年３月の東日本大震災によって引き起こされた経済活動における事象の記録，震災という未曽有の経済的混乱の状況下での被害状況および復興のようすを，若い世代に伝えたいと考える。その一環として，本稿では意外な株価上昇の原因をweb マイニングにより探るケーススタディについて述べる。震災後，殆どの企業が株価下落となったが，大幅に株価が上昇した企業もあった。また，震災の影響でマイナス要因が多いにも関わらず，株価が上昇した企業があった。我々は，そのような事例として，仙台市の酒のやまや，オリエンタルランドを例にとり，その株価上昇の原因をweb テキストマイニングによって分析した。

Suggested Citation

  • Yukari Shirota & Takako Hashimoto & Tamaki Sakura, 2012. "A Casual Analysis of Stock Price Appreciation of Certain Firms After the Great East Japan Earthquake Using Web Text-Mining," Gakushuin Economic Papers, Gakushuin University, Faculty of Economics, vol. 49(3), pages 187-196.
    • Handle: RePEc:abc:gakuep:49-3-3
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    File URL: https://www.gakushuin.ac.jp/univ/eco/gakkai/pdf_files/keizai_ronsyuu/contents/contents2012/4903/4903shirota/4903shirota.pdf
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