Schrecklich and lamerde are two justi ably obscure nineteenth-century impressionist painters. the world's total stock of paintings by schrecklich is 100, and the world's stock of paintings by lamerde is 150.the two painters are regarded by connoisseurs as being very similar in style. therefore the demand for either painter's work depends both on its own price and the price of the other painter's work. the demand function for schrecklichs is