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LPG consumption and economic growth, 1975-2016: evidence from Cameroon

Jean Gaston Tamba (Laboratory of Technologies and Applied Science, University Institute of Technology, University of Douala, Douala, Cameroon)

International Journal of Energy Sector Management

ISSN: 1750-6220

Article publication date: 9 October 2020

Issue publication date: 22 January 2021




This paper aims to examine the causal relationship between liquefied petroleum gas consumption and economic growth in Cameroon over the period from 1975 to 2016.


The methodology of this study is based on the unit root, cointegration and causality tests. Cointegration is performed with both Johansen and autoregressive distributed lag bounds approach, while causality is done with the Granger test based on the error correction model (ECM) and Toda-Yamamoto procedure.


The cointegration methods confirm the existence of a level relationship, whereas the causal tests of the ECM reveal the existence of a short-run unidirectional causal relationship ranging from liquefied petroleum gas (LPG) consumption to economic growth and a bidirectional causal relationship between long-term and high-causality variables. With the Toda-Yamamoto procedure, unidirectional causality is found to run from economic growth to liquefied petroleum gas consumption.

Research limitations/implications

These findings imply that an increase in liquefied petroleum gas consumption leads to an increase in economic growth. As a result, supporting energy efficiency policies that aim to reduce liquefied petroleum gas consumption is not an option for Cameroon. Given that LPG consumption shares are still low in Cameroon, the government ought, thus, to increase LPG subsidization, vulgarize and favor policies aimed at encouraging LPG consumption to increase LPG deposits nationwide. This would help increase LPG consumption and consequently could increase economic growth in Cameroon.


LPG is a fossil fuel and is the less GHG emitter and it is considered as a modern source of energy for cooking in Cameroon households. It scarcity calls on energy policymakers to question the influence LPG consumption could have on economic growth in the short- and long-run. Thus, this paper could contribute to solving the issue of deforestation in Cameroon, especially in the Sahel zone; through the substitution of firewood consumption by LPG consumption in households.



This paper’s findings, interpretations and conclusions are solely those of the authors and cannot be taken to represent those of the University of Douala. All remaining errors are mine.


Tamba, J.G. (2021), "LPG consumption and economic growth, 1975-2016: evidence from Cameroon", International Journal of Energy Sector Management, Vol. 15 No. 1, pp. 195-208.



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