There are three types of impacts you can calculate from a model. There is a direct impact: if I increase the production of a certain good, and I need a certain amount of input to construct that product. That's the first impact. We can measure that impact in terms of GDP and in terms of employment.
Now, of course, because somebody increased its production, some other industry will also increase its production. So there are secondary effects or indirect effects, and we can measure those.
The third impact is that if people at the end of the day have more dollars to spend, they will spend on goods and services. The government will spend more. Those effects we don't measure. They're called the spinoff effects. We can do simulations for some of our customers, especially related to the personal expenditures, but we don't do them for all sectors of the economy--personal expenditures, the government, business capital formation, and exports.