4. For a dairy farm, what are fixed inputs and what are variable inputs in the short run? Does it seem likely (from what you anecdotally know about farming, not from the table) that the short-run average cost curves have the U shape that we usually draw? Show in a diagram how the six hypothetical short-run ATC curves (one for each category of farm in the table) would relate to the long-run average cost curve you discussed in the previous question. To