When using input-output analysis to measure the effect of exogenous changes in the value of final demand, it is important to identify the degree to which the change in value is due to changes in prices or to changes in the volume of demand. A modified input-output model is presented to...

Grafting an adjustment equation onto an input-output based projection model improves the predictive performance of the unadjusted model and results in a relatively sensitive estimator of both the level of and changes in nominal and real gross farm product.