A four-stage model (calves, yearlings, adult female and adult male) of the Scandinavian moose (Alces alces) is formulated. Fecundity is density dependent while mortality is density independent. The paper aims to demonstrate the economic content of such a wildlife model and how this content may...

A static bioeconomic model of a marine reserve allowing asymmetric density dependent migration between the reserve and the fishable area is introduced. This opens for habitat or ecosystem differences allowing different fish densities within and outside a reserve, not described in earlier...

This study develops a model for wildlife migrating seasonally between a conservation area and a neighbouring area. When being outside the conservation area, harvesting takes place by a group of small-scale farmers. The local people have two motives for harvesting; to get rid of ‘problem’...

The paper analyses the relation between demographic transformation, agricultural transformation and land-use pressure within a simple agrarian economy where population is treated both as a cause and consequence of economic changes. In this Malthusian-type of economy, population growth and food...

Total Allowable Catch (TAC) regulating schemes have been introduced in most fisheries. TAC distribution following the Proportional Rule, based on historical catches, implies that harvesters or vessel groups which have captured more in the past and contributed to overfishing are getting larger...

Wild animals can represent both value and nuisance. We consider the moose (Alces alces), which due to seasonal migration causes browsing damage in some areas while creating hunting value in other areas. We first explore a situation when harvesting, following today’s practice in Norway, only...

The theory of livestock as a buffer stock predicts that agropastoralists facing substantial risks typically will use liquid assets, such as livestock, for self-insurance to smooth consumption. This paper examines this hypothesis for reindeer herders in Norway where the herders, in contrast to...

After coming close to extinction, the grey wolf (Canis lupus) has re-colonized Scandinavia during the last two decades. The current population numbers some 100–120 individuals, and is distributed in small packs along the Swedish–Norwegian border. However, with wolf re-colonization, several...

A model analyzing the economics of sheep farming is formulated. The basic idea is simple. Sheep are capital and they are held by farmers as long as their capital value exceeds their slaughter, or meat, value. The farmers are therefore portfolio managers aiming to find the optimal combination of...