We make cross-sectional comparisons of productivity in a risky agricultural setting. To make meaningful comparisons, we find it necessary to define a new productivity index that satisfies important axioms from index number theory (e.g., transitivity). The index can be computed without any...

To mitigate environmental damage from the over allocation of water property rights to irrigation in Australia’s Murray-Darling Basin, the Federal Government has introduced a Buy-Back policy. However, the conjunctive nature of water resources in the Murray- Darling Basin is highly variable....

Helicoverpa spp. (heliothis) are a major insect pest of cotton, grains and horticulture in the Murray‐ Darling Basin. Climate change is likely to make conditions more favourable for heliothis. This could cause regional comparative advantages in irrigation systems to change as management costs...