Textile technology in the Middle Ages; textile workers in the Middle Ages; wool-price schedules and the qualities of English wools in the later Middle Ages, c. 1270-1499; the 1357 wool-price schedule and the decline of Yorkshire wool values; the medieval scarlet and the economics of sartorial splendour; Bruges and the abortive staple in English cloth - an incident in the shift of commerce from Bruges to Antwerp in the late 15th century; industrial protectionism in medieval Flanders - urban or national?; industrial transformations in the North-West European textile trades, c. 1290-1340 - economic progress or economic crisis?; urban regulation and monopolistic competition in the textile industries of the late-medieval Low Countries; the international law merchant and the evolution of negotiable credit in late-medieval England and the Low Countries; economic depression and the arts in the 15th-century Low Countries.