) The document discusses regional income estimation and employment determination using two main models: the Keynesian income-expenditure model and input-output model. 2) It explains how the Keynesian model can be used to estimate a region's equilibrium income based on factors like consumption, investment, exports and imports. It also introduces the concept of the regional multiplier which magnifies changes in income. 3) The document analyzes how characteristics of a region like industry mix and location can impact the size of the regional multiplier and therefore the region's economy. It provides an example of how universities can boost a local economy through jobs and skilled graduates.