Provides a plethora of quantitative primary source evidence that is neither previously published nor analyzedCompiles a more extensive dataset of Gascon commodity prices (wine, wheat, precious metals) than has previously been available Showcases exchange rates between the pound sterling and local money of Bordeaux, unused fifteenth century ducal mint records, and from Bordeaux's customs books over 3,500 records of commercial transactionsExpands on subjects such as merchant credit, capital investment, and risk management