To objectively and highly comprehensively detect significant investment behaviors in a decision maker, and to efficiently generate a proper explanatory variable in light of the investment behavior.SOLUTION: An investment behavior analysis assist device 100 is configured to include: a storage device 101 that stores time-series data on a viewpoint position in a prescribed investment decision maker, and information on a visual object existing in a prescribed area including the viewpoint position; and a computation device 104 that calculates a gazing time of each of the viewpoint position on the basis of the time-series data, determines an attention degree of the information on the visual object existing in the viewpoint position in accordance with at least a length of the gazing time, and generates an explanatory variable to be given to a reproduction tool of the investment behavior in the investment decision maker on the basis of information on the visual object selected based on a prescribed rule in accordance with a height of the attention degree.SELECTED DRAWING: Figure 1【課題】意思決定者における有意な投資行動を、客観的かつ網羅性高く検出し、当該投資行動を踏まえた適宜な説明変数を効率的に生成する。【解決手段】投資行動分析支援装置100において、所定の投資意思決定者における視点位置の時系列データと、前記視点位置を含む所定領域に存在する目視対象の情報とを格納した記憶装置101と、前記時系列データに基づき前記視点位置それぞれの注視時間を算定し、少なくとも前記注視時間の長さに応じ、当該視点位置に存在する前記目視対象の情報の注目度を判定し、前記注目度の高さに応じて所定ルールで選定した前記目視対象の情報に基づき、前記投資意思決定者における投資行動の再現ツールに与える説明変数を生成する演算装置104を含む構成とする。【選択図】図1