A framework is developed to analyze a spatially dependent economically significant pest problem emanating from a source and spreading via a carrier such as an insect. Transmission and/or source control to combat the pest or disease problem are explored. Alternative assumptions about the...

The standard parity bounds model (PBM) is extended to allow for dynamic shifts in regime probabilities in response to changes in marketing policy. The approach allows estimation of the length of the adjustment period and a statistical test for no policy effects. The extended PBM is applied to...

We consider estimation of a panel data model where disturbances are spatially correlated in the cross-sectional dimension, based on geographic or economic proximity. When the time dimension of the data is large, spatial correlation parameters may be consistently estimated. When the time...

In recent years, there has been a steady rise in the use of marketable permits in environmental regulation. They have been employed as tools to control both air and water pollution, and have been implemented on local, regional, and national scales. These trading regimes - based upon a single...

We analyze the spatial interaction among regions in North America and in Western Europe. We use a gravity model extended by a spatial correlation structures where data allows to evaluate the level of impact and the length of the spatial tail. This allows us to address to effects external to the...

Environmental sustainability issues have in recent years received much attention from the side ofenvironmental scientists and economists. There is a broad recognition on the relevance of externaleffects in open and interacting spatial systems. It would be helpful if ecological economic...

In this paper we investigate the functional form of distance decay for commuting flows between municipalities in Denmark. Our inference is based on a single equation that includes variables to capture the effect of spatial structure. Special attention is given to a proper estimation method: We...

The focus in this article is on knowledge spillovers between high-technology firms in Europe, as captured by patent citations. The European coverage is given by patent applications at the European Patent Office that are assigned to high technology firms located in the EU-25 member states (except...