Citation: Wg. Waters et Mw. Tretheway, Labor payouts, productivity measurement, and the price cap approach to regulation, TRANSP Q, 54(1), 2000, pp. 131-144
Citation: Wg. Waters et Mw. Tretheway, Comparing total factor productivity and price performance - Concepts and application to Canadian railways, J TRANSP EC, 33, 1999, pp. 209-220