The importance of this prediction for macroeconomic policy planning in the United Republic of Tanzania should be self-evident: the performance of aggregate GDP in that country is intimately linked with the well-being of the forestry and hunting sector. In terms of elasticity, (defined as the percentage change in aggregate GDP caused by a 1 percentage point change in the sector's production (i.e., in its supply), the forestry and hunting sector has one of the lowest elasticity values. In conclusion, the model predicts that increases in output from the forestry and hunting sector would have a huge impact on the GDP of the United Republic of Tanzania. To reiterate, and as noted in figure 8, the following sectors have a comparatively large impact on GDP: real estate, agriculture and food processing, and they are identified as key sectors in figure 6.