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Sample test question . Below is a table of all the employees in a possible small city in Canada: sectors number of employees percent of employees by sector by sector prodxing for export Mining and related 4,000 100 Hotels, restaurants, retail services 4500 Public and other services 11, 200 0 (a) What are the essentials of the economic base model? ( b ) Calculate the multiplier for this small city. Be sure to show how you arrived at your result, including any formulas used and any rounding. (c) If a refinery is closed with a loss of 450 jobs, what will be the predicted employment after the closure is completed? Be sure to show how you arrived at your result, including any formulas used and any rounding