References

IEA. Key World Energy Statistics 2011, 2010, 2009, 2008, 2007. IEA; 2007-2011. 

IEA. Energy Technology Perspectives 2010. IEA; 2010. 

Commission Green Paper: a European Strategy for Sustainable, Competitive and Secure Energy. European Commission; 2006. 

Moselle, B. Renewable generation and security of supply, Harnessing Renewable Energy in Electricity Power Systems, Ch. 4. Earthscan; 2010. 

Markowitz HM. Portfolio selection. Journal of Finance 1952; 7: 77-91. 

Merton RC. An analytic derivation of the efficient portfolio frontier. The Journal of Finance and Quantitative Analysis 1972; 7: 1851-1872. 

Awerbuch S, Berger M. Applying portfolio theory to UE electricity planning and policy-making, IEA/EET, Paris (2003). 

Roques FA, Newbery DM, Nuttall WJ. Fuel mix diversification incentives in liberalized electricity markets: A Mean-Variance Portfolio theory approach. Energy Economics 2008; 30: 1831-1849. 

Marrero GA, Ramos-Real FJ. Electricity generation cost in isolated system: the complementarities of natural gas and renewables in the Canary Islands. Sustainable and 

Renewable Energy Reviews 2010; 14: 2808-2818. 

Arnesano M, Carlucci AP, Laforgia D. Extension of portfolio theory application to energy planning problem. The Italian case. Energy 2011; doi: 10.1016/j.energy.2011.06.053. 

IEA. Bioenergy – A sustainable and reliable energy source. IEA Bioenergy; 2009. 

IEA. Sustainable Production of Second-Generation Biofuels. IEA; 2010. 

Schade B, Wiesenthal T. Biofuels: A model based assessment under uncertainty applying the Monte Carlo method. Journal of Policy Modeling 2011; 33: 92-126. 

Gül T, Kypreos S, Turton H, Barreto L. An energy-economic scenario analysis of alternative fuels for personal transport using the Global Multi-regional MARKAL 
model (GMM). Energy 2009; 34: 1423-37. 

Wright L, Fulton L. Climate Change Mitigation and Transport in Developing Nations. Transport Reviews 2005; 25: 691–717. 

Creutziga F, Heb D. Climate change mitigation and co-benefits of feasible transport demand policies in Beijing. Transportation Research Part D: Transport and 
Environment 2009; 14: 120–131. 

Poudenx. P. The effect of transportation policies on energy consumption and greenhouse gas emission from urban passenger transportation. Transportation Research Part A 2008; 42: 901–909. 

Juul N, Meibom P. Optimal configuration of an integrated power and transport system. Energy 2011; 36: 3523-30. 

Ajanovic A, Haas R. Economic challenges for the future relevance of biofuels in transport in EU countries. Energy 2010; 35: 3340-48. 

EC. A roadmap for moving to a competitive low carbon economy in 2050. 2011. See also: HUhttp://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=SEC:2011:0288:FIN:EN:PDFUH. 

Böhringer C, Löschel A, Moslener U, Rutherford TF. EU climate policy up to 2020: An economic impact assessment. Energy Economics 2009; 31: S295-S305. 

Marrero G. Greenhouse gases emissions, growth and the energy mix in Europe, Energy Economics 2010; 32: 1356-1363. 

Li S. Reduction emissions from transport sector - EU action against climate change. Modern Applied Science 2009; 3: 56-62. 

Van-Zijl T. Risk decomposition: variance or standard deviation - a reexamination and extension. Journal of Financial and Quantitative Analysis 1987; 22: 237-247. 

Fama EF, French KR. The cross-section of expected stock returns. Journal of Financial Economics 1993; 33: 3–56. 

Awerbuch S. Portfolio-based electricity generation planning: policy implications for renewables and energy security. Mitigation and Adaptation Strategies for Global 
Change 2006; 11: 693-710. 

Wiser R, Bachrach D, Bolinger M, Golove W. Comparing the risk profiles of renewable and natural gas-fired electricity contracts. Renewable and Sustainable Energy 
Review 2004; 8: 335-336. 

IEA. Bioenergy, land use change and climate change mitigation. IEA Bioenergy; 2011. 

IPCC. Fourth Assessment Report: Climate Change 2007 (AR4); 2008.

Guerrero-Lemus, R, Martínez-Duart, JM. Updated hydrogen production costs and parities for conventional and renewable technologies. International Journal of Hydrogen 
Energy 2010; 35: 3929-3936. 

Foust, TD. Advanced drop-in biofuels. Presented at Rethinking Energy and Climate Strategies for Transportation – Thirteenth Biennial Conference on 

Transportation and Energy, Pacific Grove, CA, September 1; 2011. 

International Energy Outlook 2006. Office of Integrated Analysis and Forecasting, U.S. Department of Energy, EIA-DOE, Washington, DC; 2006. 

IEA. World Energy Outlook 2008, OECD/IEA Paris, France; 2008. 

Energy Information Administration. Annual Energy Outlook 2011. US Department of Energy; 2011. 

Kilian, L. The economic effects of energy price shocks. Journal of Economic Literature 2008; 46: 871-909. 

Atkeson, A, Kehoe, PJ. Models of energy use: putty-putty versus putty-clay. American Economic Review 1999; 89: 1028-1043. 

Díaz, A, Puch, LA, Guilló, MD. Costly capital reallocation and energy use. Review of Economic Dynamics 2004; 7: 494-518. 

Fuel Economy Guide. Model Year 2012. US Department of Energy and US Environmental Protection Agency; 2011. 

Biodiesel handling and use guide, 4th edition. National Renewable Energy Laboratory. US Department of Energy; 2009. 

European Central Bank. Euro exchange rates. Available from: http://www.ecb.int/stats/exchange/eurofxref/html/eurofxref-graph-usd.en.htmlU 

US Department of Energy. Energy Information Administration; several years. 

OECD. Biofuel support policies: An economic assessment. OECD, Paris, France; 2008. 

CONCAWE (JEC). Well-to-Wheels analysis of future automotive fuels and powertrains in the European context. Well-to-wheels report, Version 2c.: JRC, EUCAR, CONCAWE (JEC). Brussels, Belgium; 2007. 

OECD. Economic assessment of biofuel support policies. OECD, Paris, France; 2008. 

DEFRA. Estimating the cost-effectiveness of biofuels. Department for Environment, Food and Rural Affairs (DEFRA), London, UK; 2008. 

Department for Transport. International resource costs of biodiesel and bioethanol. Department for Transport, London, UK; 2006. 

Energy Charter Secretariat. Driving without petroleum? A comparative guide to biofuels, gas-to-liquids and coal-to-liquids as fuels for transportation. Energy Charter Secretariat, Brussels, Belgium; 2007. 

CONCAWE (JEC). Well-to-wheels analysis of future automotive fuels and powertrains in the European context. Well-to-tank report version 3.0 November 2009. WTT App.2—Description and detailed energy and GHG balance of individual pathways. JRC, EUCAR, CONCAWE (JEC). Brussels, Belgium; 2008. Environmental Protection Agency (USA). http://www.epa.gov/oms/climate/420f05001.htm#carbonU 

Hodrick, RJ, Prescott, EC. Postwar U.S. business cycles: an empirical investigation. Journal of Money, Credit and Banking 1997; 29: 1-16. 

Ríos-Rull, JV and Rodríguez-López, J. Cars, Mimeo; 2011.