Biblio
] , “Directional distance functions and public transportation: A rejoinder”, Transportation Research Part D: Transport and Environment, vol. 15, no. 2, pp. 110 - 111, 2010.
, “Distributional impacts of changing from a gasoline tax to a vehicle-mile tax for light vehicles: A case study of Oregon”, Transport Policy, vol. 17, no. 6, pp. 359 - 366, 2010.
, “The impact of information technology on motor carrier productivity”, in Journal of the Transportation Research Forum, 2010.
, “Pricing in Retail Gasoline Markets”, in Journal of the Transportation Research Forum, 2010.
, “Vehicle Mileage Fee on Income and Spatial Equity”, Transportation Research Record: Journal of the Transportation Research Board, vol. 2115, pp. 110 - 118, 2009.
, “The economic impact of the ATA/Southwest Airlines code-share agreement”, Research in Transportation Economics, vol. 24, no. 1, pp. 51 - 60, 2008.
, “The new co-payment policy under Taiwan’s National Health Insurance: welfare gain or welfare loss?”, Expert Review of Pharmacoeconomics & Outcomes Research, vol. 8, no. 2, pp. 141 - 149, 2008.
, “Accounting for emissions in the measurement of transit agency efficiency: A directional distance function approach”, Transportation Research Part D: Transport and Environment, vol. 12, pp. 1–9, 2007.
, “Productivity changes in the US motor carrier industry following deregulation: a Malmquist index approach”, International Journal of Transport Economics/Rivista internazionale di economia dei trasporti, pp. 335–354, 2000.
, “Cost efficiency in the US motor carrier industry before and after deregulation: a stochastic frontier approach”, Journal of transport Economics and Policy, pp. 303–317, 1999.