A simple bieconomic model (the Gordon-SChaefer model) is estimated for three species of tuna in the Eastern Tropical Atlantic. The model conformed well to the data and afforded estimates of maximum sustainable yield, bioeconomic and open access equilibria. Strong marginal stock effects were...

This paper demonstrates how linear programming can be used to derive optimal values of the parameters in formulas allocating state aid to public schools in New York. Although disparities in expenditures and tax rates among districts are not easily reduced by formula modifications, the model...