Structural shocks and dynamic elasticities in a long memory model of the US gasoline retail market |
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Authors: | Yuliya Lovcha Alejandro Perez-Laborda |
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Institution: | 1.Department of Economics,Universitat Rovira-i-Virgili and CREIP,Reus,Spain |
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Abstract: | A structural multivariate long memory model of the US gasoline market is employed to disentangle structural shocks and to estimate the own-price elasticity of gasoline demand. Our main empirical findings are: (1) there is strong evidence of nonstationarity and mean reversion in the real price of gasoline and in gasoline consumption; (2) accounting for the degree of persistence present in the data is essential to assess the responses of these two variables to structural shocks; (3) the contributions of the different supply and demand shocks to fluctuations in the gasoline market vary across frequency ranges; and (4) long memory makes available an interesting range of convergent possibilities for gasoline demand elasticities. Our estimates suggest that after a change in prices, consumers undertake a few measures to reduce consumption in the short- and medium-run but are reluctant to implement major changes in their consumption habits. |
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