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FUEL POVERTY AND RESIDENTIAL ENERGY DEMAND: HOW FUEL-POOR HOUSEHOLDS REACT TO ENERGY PRICE FLUCTUATIONS

Dorothée Charlier () and Sondès Kahouli ()
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Dorothée Charlier: IREGE - Institut de Recherche en Gestion et en Economie - USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc
Sondès Kahouli: AMURE - Aménagement des Usages des Ressources et des Espaces marins et littoraux - Centre de droit et d'économie de la mer - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer - UBO - Université de Brest - IUEM - Institut Universitaire Européen de la Mer - CNRS - Centre National de la Recherche Scientifique - IRD - Institut de Recherche pour le Développement - UBO - Université de Brest - CNRS - Centre National de la Recherche Scientifique

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Abstract: The residential energy demand is growing steadily and the trend is expected to continue in the near future. At the same time, under the impulse of economic crises and environmental and energy policies, many households have experienced reductions in real income and higher energy prices. In the residential sector, the number of fuel-poor households is thus expected to rise. A better understanding of the determinants of residential energy demand, in particular of the role of income and the sensitivity of households to changes in energy prices, is crucial in the context of recurrent debates on energy efficiency and fuel poverty. We propose a panel threshold regression (PTR) model to empirically test the sensitivity of French households to energy price fluctuations-as measured by the elasticity of residential heating energy prices-and to analyze the overlap between their income and fuel poverty profiles. The PTR model allows to test for the non-linear effect of income on the reactions of households to fluctuations in energy prices. Thus, it can identify specific regimes differing by their level of estimated price elasticities. Each regime represents an elasticity-homogeneous group of households. The number of these regimes is determined based on an endogenously PTR-fixed income threshold. Thereafter, we analyze the composition of the regimes (i.e. groups) to locate the dominant proportion of fuel-poor households and analyse their monetary poverty characteristics. Results show that, depending on the income level, we can identify two groups of households that react differently to residential energy price fluctuations and that fuel-poor households belong mostly to the group of households with the highest elasticity. By extension, results also show that income poverty does not necessarily mean fuel poverty. In terms of public policy, we suggest focusing on income heterogeneity by considering different groups of households separately when defining energy efficiency measures. We also suggest paying particular attention to targeting fuel-poor households by examining the overlap between fuel and income poverty.

Keywords: Residential energy demand; Income non-linearities; Price elasticity; Fuel poverty; Panel threshold regression; France (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ene and nep-reg
Date: 2018
Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-01957771
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Published in Energy Journal, International Association for Energy Economics, In press

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