Policies to adopt cleaner fuels have become increasingly important, but their impacts on incumbent fuel prices and resulting greenhouse gas emissions remain unclear. We use a panel dataset on weekly prices at the gas station level in a large Brazilian state to study how the growth of natural gas, a cheaper and less carbon-intensive alternative to traditional fuels, impacted retail prices, and profit margins of gasoline and ethanol. Applying an IV strategy, we estimate that prices and margins have fallen. The intensified competition in the fuel market boosted fuel demand, leading to higher emissions of GHGs and other pollutants.
JEL Classification: L11 Production, Pricing, and Market Structure; size distribution of firms; L13 Oligopoly and Other Imperfect Markets; Q31 Nonrenewable Resources and Conservation: Demand and Supply; prices; Q41 Energy: Demand and Supply; prices; Q53 Air Pollution; water pollution; noise; hazardous waste; solid waste; recycling
Agência Nacional do Petróleo. 2001–2016. “Levantamento de preços e de margens de comercialização de combustíveis.” Technical Report, Data requested directly to the agency (data received June 2017).
2.
AghionP.BloomN.BlundellR.GriffithR.HowittP.2005. “Competition and Innovation: an Inverted-U Relationship.”The Quarterly Journal of Economics120 (2): 701–728.
3.
AlberiniA.BareitM.FilippiniM.Martinez-CruzA. L.2018. “The Impact of Emissions-Based Taxes on the Retirement of Used and Inefficient Vehicles: The Case of Switzerland.”Journal of Environmental Economics and Management88: 234–58.
4.
ArchsmithJ.KendallA.RapsonD.2015. “From Cradle to Junkyard: Assessing the Life Cycle Greenhouse Gas Benefits of Electric Vehicles.”Research in Transportation Economics52: 72–90.
5.
Associação Nacional dos Fabricantes de Veículos Automotores. 1969–2016. “Dados Estatísticos para Download - Produção de veículos por ano.” Technical report. https://anfavea.com.br/site/edicoes-em-excel/.
6.
AzevedoT. R.JuniorC. C.JuniorA. B., et al. 2018. SEEG initiative estimates of Brazilian greenhouse gas emissions from 1970 to 2015. Scientific Data5: 180045.
7.
BarnettA. H.1980. “The Pigouvian Tax Rule Under Monopoly.”The American Economic Review70 (5): 1037–1041.
8.
BeresteanuA.LiS.2011. “Gasoline Prices, Government Support, and the Demand for Hybrid Vehicles in the United States.”International Economic Review52 (1): 161–82.
9.
BorusyakK.HullP.JaravelX.2025. “A Practical Guide to Shift-Share Instruments.”Journal of Economic Perspectives39 (1): 181–204.
10.
BuchananJ. M.1969. “External Diseconomies, Corrective Taxes, and Market Structure.”The American Economic Review59 (1): 174–7.
11.
CardosoL. C. B.BittencourtM. V. L.2013. “Mensuração das elasticidades-preço da demanda, cruzada e renda no mercado de etanol brasileiro: um estudo usando painéis cointegrados.”Revista de Economia e Sociologia Rural51 (2): 765–84.
CharreireM.LanglaisE.2021. “Should Environment Be a Concern for Competition Policy When Firms Face Environmental Liability?”International Review of Law and Economics67: 105990.
17.
ClintonB. C.SteinbergD. C.2019. “Providing the Spark: Impact of Financial Incentives on Battery Electric Vehicle Adoption.”Journal of Environmental Economics and Management98: 102255.
18.
DeschênesO.GreenstoneM.ShapiroJ. S.2017. “Defensive Investments and the Demand for Air Quality: Evidence from the Nox Budget Program.”American Economic Review107 (10): 2958–89.
19.
DeShazoJ. R.2016. “Improving Incentives for Clean Vehicle Purchases in the United States: Challenges and Opportunities.”Review of Environmental Economics and Policy10 (1): 149–65.
20.
DeShazoJ. R.SheldonT. L.CarsonR. T.2017. “Designing Policy Incentives for Cleaner Technologies: Lessons from California’s Plug-In Electric Vehicle Rebate Program.”Journal of Environmental Economics and Management84: 18–43.
21.
DorseyJ.LangerA.McRaeS.2025. “Fueling Alternatives: Gas Station Choice and the Implications for Electric Charging.”American Economic Journal: Economic Policy17 (1): 362–400.
22.
DriscollJ. C.KraayA. C.1998. “Consistent Covariance Matrix Estimation with Spatially Dependent Panel Data.”The Review of Economics and Statistics80 (4): 549–60.
23.
FanY.LeeA.ParkerfN., et al. 2017. “Geospatial, Temporal and Economic Analysis of Alternative Fuel Infrastructure: The Case of Freight and U.S. Natural Gas Markets.”The Energy Journal38 (6): 199–230.
24.
FerreiraA. L.PradoF. P. A.da SilveiraJ. J.2009. “Flex Cars and the Alcohol Price.”Energy Economics31 (3): 382–94.
25.
FetterS. K.2016. “Três Ensaios em Regulação e Organização Industrial.” PhD dissertation, Fundação Getúlio Vargas de São Paulo, São Paulo, Brazil.
26.
FiorezeM.HedlundK. F. S.GraepinC., et al. 2013. “Gás natural: Potencialidades de utilização no brasil. Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental10 (10): 2251–65.
27.
GillinghamK.HuangP.2019. “Is Abundant Natural Gas a Bridge to a Low-Carbon Future or a Dead-End?”The Energy Journal40 (2): 1–26.
GutierrezM. B. G. P. S. 2022. “O setor de gás natural no brasil: Uma comparação com os países da OCDE.” Texto para Discussão 2777, Instituto de Pesquisa Econômica Aplicada.
30.
HahnR. W.1984. “Market Power and Transferable Property Rights.”The Quarterly Journal of Economics99 (4): 753–65.
31.
HollandS. P.MansurE. T.MullerN. Z.YatesA. J.2016. “Are There Environmental Benefits from Driving Electric Vehicles? The Importance of Local Factors.”American Economic Review106 (12): 3700–729.
32.
HollandS. P.MansurE. T.MullerN. Z.YatesA. J.2019. “Distributional Effects of Air Pollution from Electric Vehicle Adoption. Journal of the Association of Environmental and Resource Economists6 (S1): S65–94.
33.
HoltsmarkB.SkonhoftA.2014. “The Norwegian Support and Subsidy Policy of Electric Cars. Should It Be Adopted by Other Countries?”Environmental Science & Policy42: 160–8.
JaffeA. B.NewellR. G.StavinsR. N.2003. “Technological Change and the Environment”. In Handbook of Environmental Economics, Volume 1, edited by MälerK.-G.VincentJ. R.Elsevier.
36.
LeardB.2022. “Estimating Consumer Substitution between New and Used Passenger Vehicles.”Journal of the Association of Environmental and Resource Economists9 (1): 27–49.
37.
LeardB.LinnJ.McConnellV.2017. “Fuel Prices, New Vehicle Fuel Economy, and Implications for Attribute-Based Standards.”Journal of the Association of Environmental and Resource Economists4 (3): 659–700.
38.
LiS.2018. “Better Lucky Than Rich? Welfare Analysis of Automobile Licence Allocations in Beijing and Shanghai.”Review of Economic Studies85 (4): 2389–428.
39.
LiS.LinnJ.SpillerE.2013. “Evaluating ‘Cash-for-Clunkers’: Program Effects on Auto sAles and the Environment.”Journal of Environmental Economics and Management65 (2): 175–93.
40.
LiS.TongL.XingJ.ZhouY.2017. “The Market for Electric Vehicles: Indirect Network Effects and Policy Design.”Journal of the Association of Environmental and Resource Economists4: 89–133.
41.
MerensteinS. G.2016. “Essays on Cartels and Market Distortions.” PhD dissertation, Fundação Getúlio Vargas de São Paulo, São Paulo, Brazil.
42.
MichalekJ. J.ChesterM.JaramilloP.SamarasC.ShiauC.-S. N.LaveL. B.2011. “Valuation of Plug-In Vehicle Life-Cycle Air Emissions and Oil Displacement Benefits.”Proceedings of the National Academy of Sciences108 (40): 16554–8.
43.
Ministério do Meio Ambiente. 2011. 1o inventário nacional de emissões atmsféricas por veículos automotores rodoviários. Relatório final, Gerência de Qualidade do Ar, Departamento de Mudanças Climáticas, Secretaria de Mudanças Climáticas e Qualidade Ambiental, Ministério do Meio Ambiente, Brasília, Brazil.
44.
MuehleggerE.RapsonD. S.2022. “Subsidizing Low- and Middle-Income Adoption of Electric Vehicles: Quasi-Experimental Evidence from California.”Journal of Public Economics216: 104752.
45.
NunezH. M.OteroJ.2017. “Integration in Gasoline and Ethanol Markets in Brazil Over Time and Space Under the Flex-Fuel Technology.”The Energy Journal38 (2): 1–26.
46.
PassosM. F. S. A. 1998. Gasoduto bolívia-brazil. Economia & Energia Ano II(10).
PavanG.PozziA.RovigattiG.2020. “Strategic Entry and Potential Competition: Evidence from Compressed Gas Fuel Retail.”International Journal of Industrial Organization69: 102566.
49.
PessoaJ. P.RezendeL.AssunçãoJ.2019. “Flex Cars and Competition in Fuel Retail Markets.”International Journal of Industrial Organization63: 145–84.
50.
SalleeJ. M.2011. “The Surprising Incidence of Tax Credits for the Toyota Prius.”American Economic Journal: Economic Policy3 (2): 189–219.
51.
SalvoA.HuseC.2011. “Is Arbitrage Tying the Price of Ethanol to That of Gasoline? Evidence from the Uptake of Flexible-Fuel Technology.”The Energy Journal32 (3): 119–48.
52.
SalvoA.HuseC.2013. “Build It, But Will They Come? Evidence from Consumer Choice Between Gasoline and Sugarcane Ethanol.”Journal of Environmental Economics and Management66 (2): 251–79.
53.
SandersN. J.SandlerR.2020. “Technology and the Effectiveness of Regulatory Programs over Time: Vehicle Emissions and Smog Checks with a Changing Fleet.”Journal of the Association of Environmental and Resource Economists7 (3): 587–618.
54.
SantosG. F.2013. “Fuel Demand in Brazil in a Dynamic Panel Data Approach.”Energy Economics36: 229–240.
55.
ScheitrumD.2020. “Impact of Intensity Standards on Alternative Fuel Adoption: Renewable Natural Gas and California’s Low Carbon Fuel Standard.”The Energy Journal41 (2): 191–217.
56.
SchinkelM. P.SpiegelY.2017. “Can Collusion Promote Sustainable Consumption and Production?”International Journal of Industrial Organization53: 371–98.
ShriverS. K.2015. “Network Effects in Alternative Fuel Adoption: Empirical Analysis of the Market for Ethanol.”Marketing Science34 (1): 78–97.
59.
SilveiraD.VasconcelosS.BogossianP.NetoJ.2021. “Cartel Screening in the Brazilian Fuel Retail Market.”EconomiA22 (1): 53–70.
60.
Sindicato Nacional da Indústria de Componentes para Veículos Automotores. 2008. “Frota circulante de veículos de passeio e comerciais leves por ano de fabricação em 2008.” Technical Report, Data requested directly to the institution (data received April 2021).
61.
SophaB. M.KlocknerC. A.FebriantiD.2017. “Using Agent-Based Modeling to Explore Policy Options Supporting Adoption of Natural Gas Vehicles in Indonesia.”Journal of Environmental Psychology52: 149–65.
62.
SpringelK.2021. “Network Externality and Subsidy Structure in Two-Sided Markets: Evidence from Electric Vehicle Incentives.”American Economic Journal: Economic Policy13 (4): 393–432.
WallsM. A.1996. “Valuing the Characteristics of Natural Gas Vehicles: An Implicit Markets Approach.”The Review of Economics and Statistics78 (2): 266–76.
66.
White House. 2021. Social cost of carbon, methane, and nitrous oxide - interim estimates under executive order 13990. Technical support document, Interagency Working Group on Social Cost of Greenhouse Gases, United States Government., Washington D.C., USA.
67.
YanS.EskelandG. S.2018. “Greening the Vehicle Fleet: Norway’s CO2-Differentiated Registration Tax.”Journal of Environmental Economics and Management91: 247–62.
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