تقدير منظومة الأسعار العالمية للحبوب للفترة (1961-2002)‎

الملخص EN

The work in this paper estimates the simultaneous equations of the grains for the period (1961-2002).The estimation necessitate dealing with the variables that have direct effects on the world prices of the grains and then adding the economic crises to the system, which is finance and monetary crises, petrolic shocks, wars, and curtness.

For estimation we have used limit information maximum likelihood (LIML) and K-Class estimator (K-Class).

We depended on the results of the last method because it is more accurate and efficiently with the economic and statistic theory.

The (SAS.9) Package is used to obtain the results.