Authors
![Person graphic](/sites/default/files/styles/square_desktop/public/2022-06/IFS-person-graphic.png?itok=hWCtTSrz)
Ian Crawford
![Ian Preston](/sites/default/files/styles/square_desktop/public/2022-07/Ian%20Preston.jpg?itok=motnJYqo)
Research Fellow University College London
Ian is a Research Fellow of the IFS and a Professor of Economics at UCL. He joined UCL in 1991 and has been attached to the IFS since 1990.
![Person graphic](/sites/default/files/styles/square_desktop/public/2022-06/IFS-person-graphic.png?itok=hWCtTSrz)
International Research Fellow ZEW, Mannheim
Francois is a Professor at ZEW Manheim and is also an International Fellow of IFS. His research interests include labour markets and social policy.
Journal article details
- JEL
- D11, D12
- Issue
- March 2003
Suggested citation
I, Crawford and F, Laisney and I, Preston. (2003). 'Estimation of household demand systems with theoretically compatible Engel curves and unit value specifications' (2003)
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