At‐Home Consumption of Cheese: A Purchase‐Infrequency Model

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Abstract
For many commodities, zero purchases are recorded in household budget surveys even though positive consumption occurs. This may reflect a survey period that is shorter than the purchase cycle. The present study estimates a purchase‐infrequency model for cheese using the 1987 BLS Consumer Expenditure Survey. Appropriateness of the Tobit specification is examined along with the assumption of independence of the two‐stage expenditure decision process.

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