G. Ahlfeldt, E. Pietrostefani: The compact city in empirical research: A quantitative literature review

G. Ahlfeldt, W. Maennig, S. Mueller: The generation gap in direct democracy

G. Ahlfeldt, S. Redding, D. Sturm: A Quantitative Framework for Evaluating the Impact of Urban Transport Improvements

G. Ahlfeldt, D. McMillen: New estimates of the elasticity of substitution between land and capital

G. Ahlfeldt: Urbanity