The introduction of new forages and milk marketing improvements was projected to permit even the smallest modeled farms in a western Kenya region to adopt dual-purpose goats and thereby improve family income and nutrition. Expanded credit permitted modeled medium and large farms, especially, to...

Livestock contribute to the livelihoods of 70% of the world’s poor, including farmers, traders and labourers. The next food revolution will dramatically expand production and consumption of animal products in the developing world. This revolution, however, also threatens the livelihoods of...

Replaced with revised version of paper 07/29/09.

This paper assesses the impact of chicken vaccination on farmers’ income. A dynamic simulation model, VIPOSIM, combined with benefit-cost techniques, was used ensuring that both, the dynamic aspects of village poultry production system and selection bias are addressed. The findings of this...

We present a computational model of fishing fleet dynamics for the Queensland coral reef line fishery. The model runs in a two dimensional space with agents moving between port and the collection of available reefs. The model of rationality is based on the haystack models of game theory, such...

Avian Influenza caused losses to poultry producers in East Java in 2003 and 2004. Two surveys of poultry producers in affected districts were conducted in September 2005. One was of 125 broiler producers and the other of 125 egg producers. Based on results from these surveys the relationship...

Recent low estimates of total factor productivity change for wool producers in the Australian sheep industry indicate that they are struggling to improve their performance. This evidence is at odds with the views of many technical observers of industry performance, prompting us to re-estimate...

Dairy farms in China’s suburban areas have been playing an important role in providing urban markets with fresh milk. With the construction of dairy cattle concentration centres and more cows being driven to the concentration centres, small and scattered dairy farms are gradually disappearing...