Portfolio Considerations in Differentiated Product Purchases: An Application to the Japanese Automobile Market

Naoki Wakamori

Staff Working Papers from Bank of Canada

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.

Keywords: Economic models; Market structure and pricing (search for similar items in EconPapers)
JEL-codes: D4 L5 Q5 (search for similar items in EconPapers)
Pages: 46 pages
Date: 2011
New Economics Papers: this item is included in nep-com and nep-mkt
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:bca:bocawp:11-27

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