Ian Crawford - Research

Further information about research projects, publications and teaching.

See Academic Profile page.

Research Papers

'Nonparametric Analysis of Time-Inconsistent Preferences'. Joint with Laura Blow and Martin Browning

'Extremists: An experimental study of social interactions and changing preferences'. Joint with Donna Harris 

'Demand analysis with partially observed prices'. Joint with Matt Polisson 

​"An entropy-based approach to the APC problem". Joint with Martin Browning & Marike Knoef 

Stata code, written by Cormac O’Dea, to estimate the model described in this paper is available
at https://www.ifs.org.uk/publications/5998


"Gorman revisited: Nonparametric conditions for exact aggregation", SERIEs, 7:203–220 (2016),(with Laurens Cherchye, Bram De Rock & Frederic Vermeulen)

"Sharp for SARP" American Economic Journal: Microeconomics, 7(1): 43-60, (2015), (with Richard Blundell, Martin Browning, Laurens Cherchye, Bram De Rock & Frederic Vermeulen)

"Testing for Intertemporal Separability" Journal of Mathematical Economics, 52(C), 46-49, (2014), (with Matthew Polisson)​

"Empirical Revealed Preference", Annual Reviews, Vol. 6: 503 -524, (2014), (with Bram de Rock)

"How Many Types are There?", Economic Journal, 123 (2013), 77-95, (with Krishna Pendakur)

"How Demanding is the Revealed Preference Approach to Demand?", American Economic Review, 101 (2011), 2782–2795, (with T. Beatty)

"Welfare Rankings from Multivariate Data, a Nonparametric Approach", Journal of Public Economics 95 (2011) 247–252, (with G. Anderson and A. Leicester)

"Habits Revealed" Review of Economic Studies, (2010) 77(4), pp. 1382-1402

"Best Nonparametric Bounds on Demand Responses" Econometrica, (2008) 76(6), pp. 1227–1262 (with R. Blundell and M. Browning)

"Testing for a Reference Consumer in International Comparisons of Living Standards" Amercian Economic Review (2008) 98(4), pp. 1731–32, (with J. Peter Neary)

"Revealed Preference Methods for the Consumer Characteristics Model" Review of Economic Studies, (2008) vol 75, pp. 371-389, (with L. Blow and M. Browning)

"Improving Bounds on Demand Curves " International Economic Review, (2007) Vol. 48, No. 4, November, (with R. Blundell and M. Browning).

"The RPI and the cost-of-living index: testing for consistency between theory and practice", Fiscal Studies, (2004), vol. 25, no. 1, pp. 79-91 (with I. Image)

"Nonparametric Engel Curves and Revealed Preference", Econometrica, (2003) vol. 71, no. 1, pp. 205-240, (with R. Blundell and M. Browning)

"Estimation of household demand systems with theoretically compatible Engel curve and unit value specifications", Journal of Econometrics, (2003) vol. 114, pp. 221-241, (with F. Laisney and I. Preston).

"The cost of living with the RPI: Substitution bias in the UK Retail Prices Index", Economic Journal, (2001), 111, F311-334 (with L. Blow)

Book Chapters

“The revealed preference approach to demand” in Quantifying consumer preferences: estimating demand systems - Contributions to economic analysis Daniel Slottje (ed.), Emerald Press. 2009, with L. Cherchye L, B. De Rock, F. Vermeulen F.

“Efficiency Analysis and the Lower Convex Hull Approach”, in Quantitative Approaches to Multidimensional Poverty Measurement, Nanak Kakwani and Jacques Silber (ed.’s) Palgrave Macmillan, 2008, with G. Anderson and A. Leicester

“Value Added Tax and Excises” in The Mirrlees Review: Dimensions of Tax Design, S. Adam, T. Besley and R. Blundell (ed.’s), Oxford University Press, 2009, with M. Keen and S. Smith


Undergraduate Introductory Economics (Prelims). Course materials​

Undergraduate Quantitative Economics. Course materials

Graduate Theory-based Empirical Analysis (Structural Modelling). Co​urse materials

Colleagues and co-authors

Abi Adams​​​
Laurens Cherchye
Zoe Oldfield
​Gordon Anderson ​
Bram De Rock​​
Krishna Pendakur
​Abigail Barr
Andrew Dilnot​​​ ​
Matt Polisson
​Tim Beatty
Isabella Image
​​​Ian Preston
Laura Blow​​
Mick Keen​
Sarah Smith​
Richard Blundell​​
​​Marike Knoef
Stephen Smith
​​Martin Browning​
Francois Laisney​ ​
Frederic Vermeulen
Vincent Crawford​​
​​​​Peter Neary​
​​Chris Wallace