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Title:Portfolio considerations in differentiated product purchases: An application to the Japanese automobile market PDF Logo
Authors:Wakamori, Naoki
Issue Date:2011
Series/Report no.:Bank of Canada Working Paper 2011,27
Abstract:Consumers often purchase more than one differentiated product, assembling a portfolio, which might potentially affect substitution patterns of demand and, as a consequence, oligopolistic firms' pricing strategies. This paper studies such consumers' portfolio considerations by developing a structural model that allows for flexible complementarities/substitutabilities depending on consumer attributes and product characteristics. I estimate the model using Japanese household-level data on automobile purchasing decisions. My estimates suggest that complementarities arise when households purchase a combination of one small automobile and one minivan as their portfolio. Ignoring such effects leads to a overstated counterfactual analysis. Simulation results suggest that a policy proposal of repealing the current tax subsidies for small ecofriendly automobiles would decrease the demand for those automobiles by 9%; less than the 14% drop predicted by a standard single discrete choice model.
Subjects:Economic models
Market structure and pricing
JEL:D4
L5
Q5
Document Type:Working Paper
Appears in Collections:Bank of Canada Working Papers

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