A U.S. firm called EcoWind produces windmills for households to generate electricity. It uses 25,000 recently obtained pesos to buy copper from a mining company in Argentina. As a result of this exchange, by how much, if at all, and in which direction did: A. U.S. net exports change? B. U.S. net capital outflow change?

The short-run aggregate supply curve is:

A. an upward-sloping curve that intersects the aggregate demand curve and the long-run aggregate supply curve. B. a vertical line that intersects the aggregate demand curve but not the long-run aggregate supply curve. C. a horizontal line that intersects the aggregate demand curve and the long-run aggregate supply curve. D. an upward-sloping curve located to the left of the long-run aggregate supply curve

When a firm experiences increasing returns to scale

A) its AFC will decrease. B) its AFC will increase. C) its AC will increase. D) its AC will decrease.