With a fixed amount of resources, 20 units of computers or 30 units of food can be produced. Also, the combinations of computer and food can be produced. Combinations are 25 units of food and 4 units of computers, 20 units of food and 7 units of computers, 15 units of food and 10 units of computers, etc. Draw the PPF. If new technology in computer production is invented and adopted, what will happen to the PPF? Find the opportunity cost of first 4 units of computer? If the total resources of the country increase, what will happen to the PPF
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