This paper uses a stochastic cost frontier model to investigate the efficiency of Britain’s private railways during the period 1893-1912. We find that there was substantial inefficiency in the industry with no sign of reduction over time. Our main conclusion is that principal agent problems...

Why are some countries so much richer than others? Development Accounting is a first-passattempt at organizing the answer around two proximate determinants: factors of productionand efficiency. It answers the question “how much of the cross-country income variance canbe attributed to...