In the beginning of the 1990s, Dutch government and representatives of employers' organisations have urged the higher professional education sector (HBO) to restructure the supply of the programmes in the sub-sectors of HBO. The sub-sectors were challenged to cut back the number of study programmes to increase the efficiency of the supply. A theoretical framework based on resource dependence and network analysis is proposed to explain why different sub-sectors have reacted differently to the pressure to reduce the pressure. An empirical analysis is carried out for foursub-sectors: agriculture, economics, engineering and the socialcultural sector. The hypotheses could only partly be confirmed, but the simultaneous effect of government dependence, labour market dependence and sub-sector heterogeneity can be shown. Given the restricted number of cases, suggestions for further research are formulated. At the same time, it is implied to complement the chosen quantitative macro-approach with micro-analyses (case studies) on the emergence and disappearance of study programmes.