Manzan, sebastiano and Zerom, Dawit (2008): A Semiparametric Analysis of Gasoline Demand in the US: Reexamining The Impact of Price. Forthcoming in: Econometric Reviews

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Abstract
The evaluation of the impact of an increase in gasoline tax on demand relies crucially on the estimate of the price elasticity. This paper presents an extended application of the Partially Linear Additive Model (PLAM) to the analysis of gasoline demand using a panel of US households, focusing mainly on the estimation of the price elasticity. Unlike previous semiparametric studies that use householdlevel data, we work with vehiclelevel data within households that can potentially add richer details to the price variable. Both households and vehicles data are obtained from the Residential Transportation Energy Consumption Survey (RTECS) of 1991 and 1994, conducted by the US Energy Information Administration (EIA). As expected, the derived vehiclebased gasoline price has significant dispersion across the country and across grades of gasoline. By using a PLAM specification for gasoline demand, we obtain a measure of gasoline price elasticity that circumvents the implausible price effects reported in earlier studies. In particular, our results show the price elasticity ranges between −0.2, at low prices, and −0.5, at high prices, suggesting that households might respond differently to price changes depending on the level of price. In addition, we estimate separately the model to households that buy only regular gasoline and those that buy also midgrade/premium gasoline. The results show that the price elasticities for these groups are increasing in price and that regular households are more price sensitive compared to nonregular.
Item Type:  MPRA Paper 

Original Title:  A Semiparametric Analysis of Gasoline Demand in the US: Reexamining The Impact of Price 
Language:  English 
Keywords:  semiparametric methods; partially linear additive model; gasoline demand 
Subjects:  C  Mathematical and Quantitative Methods > C1  Econometric and Statistical Methods and Methodology: General > C14  Semiparametric and Nonparametric Methods: General D  Microeconomics > D1  Household Behavior and Family Economics > D12  Consumer Economics: Empirical Analysis 
Item ID:  14386 
Depositing User:  Dawit Zerom 
Date Deposited:  01. Apr 2009 04:40 
Last Modified:  12. Feb 2013 19:54 
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URI:  http://mpra.ub.unimuenchen.de/id/eprint/14386 