We formulate a model that determines the net benefit of Johne's disease vaccination within a tuberculosis-accredited region given the extra costs associated with the vaccine-related cross-reactivity with tuberculosis test results and the probability of a tuberculosis outbreak. We apply the model...

Data from a panel of New York Dairy farms were used to estimate bST adoption functions, and to measure the impact of bST on milk output and profitability per cow. Adoption results are consistent with previous ex ante bST adoption studies. Farm size, productivity, and education of the principal...