Productivity Change in Ocean Shipping after 1870: A Comment

Abstract

The recent contribution by Knauerhase in this Journal raises some important issues regarding productivity change in ocean shipping in the late nineteenth century. The study is limited to the German fleet for the period from 1871 to 1887, but the findings do bear on the decline of freight rates after 1870. The traditional argument, which is now less in vogue, is that steam played the significant role in the last half of the nineteenth century and was the main source of advancing productivity. The novelty and importance of the findings by Knauerhase is that they support this hypothesis. The evidence given by Graham, on the other hand, points to the 1870's as a period when the sailing vessel underwent significant productivity change and experienced revived growth. This position has been buttressed by North, who argues that sail dominated the long-haul routes where most of the goods were carried and where the reduction in freight rates was most dramatic.