When there is a shortage of highly skilled workers in a particular region: O highly skilled workers can negotiate higher salaries. O the incomes of highly skilled workers fall. O unemployment rises among highly skilled workers. there is a corresponding surplus of low-skilled workers in the region. You're shopping online, and you place an item in your virtual cart. Two days later, you return to the virtual cart to check out and find that the item is now more expensive. Assuming that the market is competitive, what could explain the price increase? There is a shortage of the item. There is decreased demand for the item. There is a surplus of the item. New sellers are offering the same product. Graphically, shortages will always occur: at prices below the equilibrium price. when the quantity supplied exceeds the quantity demanded. at the equilibrium price. at prices above the equilibrium price.