3 ABC Computer Company has a $20,000,000 factory in Silicon Valley. During the current year ABC builds $2,000,000 worth of computer components. ABC's costs are labor, $1,000,000; interest on debt, $100,000; and taxes, $200,000. ABC sells all its output to XYZ Supercomputer. Using ABC's components, XYZ builds four supercom- puters at a cost of $800,000 each ($500,000 worth of components, $200,000 in labor costs, and $100,000 in taxes per computer). XYZ has a $30,000,000 factory.

XYZ sells three of the supercomputers for $1,000,000 each. At year's end, it had not sold the fourth. The unsold computer is carried on XYZ's books as an $800,000 increase in inventory.

a. Calculate the contributions to GDP of these transac- tions, showing that all three approaches give the same answer.

b. Repeat part (a), but now assume that, in addition to its other costs, ABC paid $500,000 for imported. computer chips.