Academic Profile

People Feature

Ian Crawford

Professor of Economics
Professorial Fellow

Research Interests: Empirical microeconomics.

I am a Professorial Fellow at Nuffield College, and a Professor of Economics in the Department of Economics, University of Oxford. I’m interested in empirical microeconomics. I mainly focus on individual behaviour and nonparametric empirical and theoretical methods. The aim is to find new ways to combine microeconomic theory and microeconomic data as seamlessly as possible. This generally involves reframing the empirical content of the theory of interest entirely on the basis of observables, and in terms of decidable systems of inequalities or properties of equivalent graphs, and using numerical/algorithmic, rather than statistical, methods. Current drafts of papers, or slides, are available on my research pages. I am also a member of the (Technical) Advisory Panel on Consumer Prices for the Office for National Statistics. My Erdős number is 5.

Ian Crawford




"New Characteristics and Hedonic Price Indices", forthcoming, Review of Economics & Statistics, (with J. Peter Neary)

"Nonparametric Analysis of Time-Inconsistent Preferences'", Review of Economic Studies, 88(6), 2687–2734, November 2021, (with L. Blow & M. Browning) 

"Social interactions and the influence of 'extremists'", Journal of Economic Behaviour and Organisation, 153,238-266,  September 2018,  (with Donna Harris)

"Gorman revisited: nonparametric conditions for exact linear aggregation", SERIEs: Journal of the Spanish Economic Association. 7, 203-220, (2016). (with Cherchye, L, B. De Rock and F. Vermeulen)

"Sharp for SARP" American Economic Journal: Microeconomics, 2015, 7(1): 43–60, (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, 6, 503-525, 2014 (with Bram de Rock)

“How many types are there?” Economic Journal, 123(567), 77–95, March 2013, (with K. 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, 77(4), 2010, pp. 1382-1402

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

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

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

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

“The RPI and the cost-of-living index: testing for consistency between theory and practice”, Fiscal Studies, 25(1), 2004, pp. 79-91 (with I. Image)

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

"Nonparametric Engel Curves and Revealed Preference", Econometrica, 71(1), 2003, pp. 205-240, (with R. Blundell and M. Browning

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