We present new evidence about the relationship between military conflict and city population growth in Europe from the fall of Charlemagne's empire to the start of the Industrial Revolution. Military conflict was a main feature of European history. We argue that cities were safe harbors from...

We analyze a general commitment problem inherent to the formation of tax states: How can a state credibly promise to use tax revenues for pre-specified purposes? At the start of the early modern period in Europe, monarchs controlled expenditure. Where parliaments controlled taxation, the result...