By an exception to the law of demand, we mean those rare cases in which demand curves might actually be upward sloping. That is, as price goes up, more is demanded; and as price falls, less is demanded. Such exceptions, if they even exist, are relatively rare. For the most part, these exceptions can be ignored in our understanding of microeconomics (again, we put aside investment goods). If exceptions do exist, such a demand curve might look like the curve to the right.