For predictive purposes and for understanding the re1ationship between the US market and Canadian newsprint producers an econometric model was bui1t. In this study, a simu1taneous-equation model was developed. Which consisted of four equations, one each for the supply, export, consumption and price of newsprint. The period of l955-1986 was covered by this mode1. The data for the years l985 and l986 were reserved to test the predictive, power of the model. In fitting the four equations for the period of 1955-1984.the coefficients of determination, the R-square values, between observed and predicted values were higher than 99 percent. The test results of the forecasting power showed that there was no statistically significant difference between predicted and observed values at the 5 percent level of significance. Sources of forecasting error are expressed as three partial inequality coefficients associated with bias, variance and covariance of predicted and observed values. The error could not be further reduced. The model can be used to make annual predictions and provides an accurate means of predicting demand, supply, consumption and price of Canadian newsprint exports to the United States of America.