Rational Addiction with Optimal Inventories: Theory and Evidence from Cigarette Purchases in Japan
A rational addiction (RA) model with optimal inventories is developed and empirically tested. Consumers hoard addictive goods when they anticipate a future price increase. The optimal inventory period increases with the size of the price hike but decreases with inventory costs. The absolute value of the price elasticity of demand is smaller in the case of a price increase than in the case of a price decrease. Evidence from daily cigarette purchases in Japan is consistent with this asymmetric price effect. If inventories are ignored, monthly cigarette purchases reject the RA hypothesis inasmuch as inventories are an omitted variable correlated with price; but this hypothesis finds support if inventories are controlled for.
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|Date of creation:||Jan 2004|
|Date of revision:||Feb 2006|
|Contact details of provider:|| Web page: http://www.econ.osaka-u.ac.jp/|
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