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Abstract
This report is documentation for the Irrigation Production Data System (IPDS), Lotus macros used to perform comparative statics, and IPDS operating procedures. IPDS is a Lotus 1-2-3 microcomputer database developed to help evaluate irrigation returns and breakeven statistics across crops, States, and U.S. farm production regions. The IPDS database incorporates 1984 crop yield, acreage, price, and cost data for 11 dryland and 10 irrigated commodities. The system may be used to perform comparative static analysis with respect to adjustments in selected input and output factors by State and region.