Higher isocost lines correspond to higher

In a monopolistic competitive industry, firms can try to differentiate their products by

A. creating optimal perceptions of the product. B. choosing optimal locations from which the product is sold. C. enhancing the intangible aspects of the product. D. all of the above

The rational expectations hypothesis indicates that a monetary policy designed to alter real Gross Domestic Product (GDP) will fail unless

A. changes in the money supply are completely anticipated. B. there are unanticipated changes in the money supply. C. labor unions have long-term contracts. D. wages and prices are flexible.