Pastoralism and communal livestock production are important economic activities in Sub-Saharan Africa. According to FAO production figures the number of cattle in two countries, Botswana and Namibia, outnumber the human population (FAO, 1989). In Southern Africa, Botswana's agricultural sector...

We analyze the problem of an integrated management of fisheries by using fish farming as a tool for restocking fish populations depleted by overfishing pressure. We first use a simple heuristic dynamic model, taken from a classical example of mathematical bioeconomics, in order to prove that...

Presented to USDA Economists Group, Washington DC, May 27, 2009

In this article, a numerical stochastic dynamic programming model (SDP) is developed to characterize the decision problem of a rancher operating on rangelands in northern Nevada that are affected by invasive annual grasses and wildfire. The model incorporates decisions about herd size management...

Minnesota can improve the utilization of manure and organic wastes via the production of biogas that can be used to produce heat and electricity. Denmark serves as a role model for Minnesota in the number of central anaerobic digesters that it supports. During anaerobic digestion methane is...

This paper investigates private responses and ecological impacts of policies proposed to confront the problem of brucellosis being spread from elk to cattle in Wyoming. The policies consist of combinations of changes in elk feeding and population levels. Farmers' responses to these dynamics are...

The mechanisation of the dairy industry in New South Wales has proceeded gradually over the past fifty years; however, the rate of increase in the use of mechanised equipment during that period has been far from uniform. The introduction of milking machines at the turn of the century resulted in...