品質改善投資補助金, Minimum Quality Standards と経済厚生 : ベルトラン競争のケース (創立四十五周年記念号)

概要

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Using a quality -augmented version of the quadratic utility function proposed by Sutton (1998), I investigate the effects of both endogenous Minimum Quality Standards (MQS) and subsidies upon outputs, profits, consumer surplus and national welfare under Bertrand competition. The main findings of this paper are as follows : (1) MQS improves national welfare under Bertrand competition as well as under Cournot competition. (2) Subsidies for quality improvement produce identical qualities, outputs and welfare to those obtained by MQS. (3) Subsidies under Bertrand competition are higher than those obtained by Cournot competition. Thus, under Bertrand competition higher subsidies produce higher quality than under Cournot competition ; this also ensures higher outputs and welfare under Bertand competition than under Cournot competition. In contrast, in a non-intervention situation quality is higher under Cournot competition than under Bertrand competition.
追手門学院大学の論文