A stochastic simulation of the economic effects of the spread of the gypsy moth throughout the United States - program documentation and users guide for GYMMSIM1 [Gypsy Moth Movement Simulator, version 1].

Foster H.S. Jr.

A stochastic simulation of the economic effects of the spread of the gypsy moth throughout the United States - program documentation and users guide for GYMMSIM1 [Gypsy Moth Movement Simulator, version 1].

1982

Foster H.S. Jr.

Extract: A computerized model for estimating the economic effects of the spread of the gypsy moth throughout the United States has been developed. The model, GYMMSIM1, uses stochastic simulation in a financial budgeting framework over a planning horizon and has been developed to allow a wide range of assumptions and policy alternatives to be simulated. This manuscript provides general model documentation describing the use of program parameters for various scenarios, definitions of variables, a description of the SAS data base required for the simulation, and SAS macros used. Technical appendices provide information for those who wish to modify, revise, or improve the program.

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