The fictional country of Alperta increases the income tax rate so that tax revenues increase by $50 million. If GDP, consumption, and government spending remains the same and Alpetra is a closed economy, what is the change in investment? a. $50 million

b. $100 million

c. no change

d. cannot be determined from the information given

The purchasing agent for a company that assembles and sells air-conditioning equipment in a latin american country noted that the cost of compressors has increased significantly each time they have been reordered. the company uses an eoq model to determine order size. what are the implications of this price escalation with respect to order size? what factors other than price must be taken into consideration?