On 25 February 2026, Posthumus alumnus Junhao Cao sucessfully defended the PhD thesis ‘Property Rights and Agricultural Growth in Northwestern Europe, 1300-1800’ at Utrecht University. Supervisors were Professor Bas van Bavel and Dr Jessica Dijman (both Utrecht University).
Junhao Cao’s research seeks to explain the agricultural growth in the Low Countries and England over the period 1300–1800. This study investigates whether the transition towards private and secure land property rights drove agricultural growth, and through what mechanisms such impact occurred. The study employs regional, long-term and comparative approaches. Five case studies—the two main cases being Holland and Norfolk and the three minor ones inland and coastal Flanders and the South Midlands—serve as representatives of the advanced agriculture in the Low Countries and England, and broader in northwestern Europe. The study demonstrates that the favourable development of land property rights formed a precondition for and drove agricultural growth under certain conditions, but the extent of this growth varied, and in some cases stagnation occurred. The crucial points were as follows: free, private and secure property rights increased the transferability of land; land was transferred to dominant social groups which were different across regions; this gave rise to different strategies of land management and different farm size distribution; which in turn shaped labour input patterns and land use models, and thus determined agricultural growth in terms of labour productivity.
The N.W. Posthumus Institute staff congratulates Junhao Cao with obtaining the PhD!









In 2026 viert de Utrechtse Historische Studentenkring (UHSK) het honderdjarig bestaan. Ter gelegenheid hiervan verschijnt in maart van dit jaar bij uitgeverij WBooks de publicatie De Utrechtse Historische Studentenkring 1926 – 2026: Een eeuw verenigd door Geschiedenis. Aan deze jubileumpublicatie werkten naast Posthumus fellow Elise van Nederveen Meerkerk als auteurs Mette Bruinsma en Jorrit Steehouder en twee redactieassistenten van de UHSK, Jasmijn Cox en Chiara Evans mee, ondersteund door drie stagiairs voor de dataverzameling voor het boek: Lieke Loman, Aigui Thewissen en Zita Zwart.