We investigate how technology has influenced the size of armies. During the nineteenth century the development of the railroad made it possible to field and support mass armies, significantly increasing the observed size of military forces. During the late twentieth century further advances in...

We provide the first systematic examination of the determinants of military mobilization over the very long run. Focusing on a sample of thirteen great powers between 1600 and 2000 we argue that changes in transport and communications technology were the single most important factor in both...

This paper uses the adoption and invention of the spinning jenny as a test case to understand why the industrial revolution occurred in Britain in the eighteenth century rather than in France or India.  It is shown that wages were much higher relative to capital prices in Britain than in other...

What are the sources of productivity growth? Economic theory offers a panoply of explanations, considering the effects on productivity of organisational factors, research and development activity and factor accumulation, amongst other influences. Translating these theoretical models into...