Competition for and in the passenger rail market: Comparing open access versus franchised train operators' costs and reliability in Britain. - Alexander D. Stead; Phill Wheat; Andrew S. J. Smith; Manuel Ojeda-Cabral (J. Rail Transp. Plan. Manag., 2019)

Editorial. - Phill Wheat; Zdenek Tomes (J. Rail Transp. Plan. Manag., 2019)

The case for the use of multiple imputation missing data methods in stochastic frontier analysis with illustration using English local highway data. - Alexander D. Stead; Phill Wheat (Eur. J. Oper. Res., 2020)

Robust maximum likelihood estimation of stochastic frontier models. - Alexander D. Stead; Phill Wheat; William H. Greene (Eur. J. Oper. Res., 2023)