Douglas J. Puffert teaches economics at the King's College, New York.
"""An excellent accomplishment. Douglas Puffert has analyzed exhaustively the evolution of the various diverse railway track gauges since the emergence of 'modern' steam locomotives and wrought iron rails in the 1820s. No other book has attempted to compile, use, and interpret such a variety of historical information on gauges and employ this kind of economic theory and modeling to explain it."" - Bradley Lewis, Union College"""