relationship between agglomeration externalities and the level of education. While the positive relationship between economic …

Based on micro-data on individual workers for the period 2000-2005, we show that wage differentials in the Netherlands … Marshall-Arrow-Romer externalities, where doubling the share of a (2-digit NACE) industry results in a 2.4 percent higher … productivity. We find evidence for a negative effect of competition (associated with Porter externalities) and diversity …

for a wetlands area in the Netherlands, the Vecht area. This is the floodplain of river Vecht, located in the centre of … the Netherlands. The study has resulted in a set of linked spatial hydrological, ecological and economic models …, infrastructure, agriculture, recreation and nature conservation. The formulation of alternative development scenarios is dominated by …

. However, if the programme generates externalities for non-participants such an approach will capture only part of the …