マルチエージェント生産経済モデルのダイナミクスの評価

摘要

近年，社会格差が社会問題として注目を集めている．社会格差の拡大は経済の活性化・人的資源・社会秩序・経済援助負担・倫理・健康等の面で懸念されている．これらの面から社会格差は解決すべき一般的な福祉問題と捉えることができる．本研究では，社会格差の発生メカニズムを解明するためのエージェントベース生産経済モデルを構築し，そのダイナミクスを評価する．経済指標として社会格差を評価する指標であるジニ係数と経済効率を評価に用いる．結果として，競争性の低い経済に比べて競争性の高い経済は経済効率とジニ係数の高い負の相関があることが示唆された．%In recent years, a ' social divide ' , such as income and professed divides, has noticed as one kind of social issue. It is defined that, in the divided groups, the member belonged to one group cannot move on any other groups. Such fixation of social careers causes non-activation of economy. In this study, we suggested a dynamic economic model described by a multi-agent system, and evaluated it's dynamics in order to try to understand mechanisms how the social divide emerges in the model. We used Gini's coefficient to evaluate the social divide and the economic efficiency. As a result, it's suggested that high competitiveness economics have higher negative relation between Gini's coefficient and the economic efficiency than low competitiveness one.