This series of discussions presents commentaries and a rejoinder on the economic perspectives on branding arising from Moorthy (Moorthy S. (2012) Can brand extension signal product quality? Marketing Sci. 31(5):756-770)

Two concepts of brand loyalty are defined, “inertial” brand loyalty resulting from time lags in awareness, and “cost-based” brand loyalty resulting from intertemporal utility effects. Their market level implications are formally derived in a continuous time model. It is found that...

The paper provides a formal rationale for the common practice of using sales assistance. The argument is made in a model where a consumer's situation determines his needs. The products are differentiated and the map identifying the best match between a consumer's situation and a product is known...

The paper offers a comparative analysis of different ways to sell products (selling formats) when buyers incur evaluation costs. Since these costs are sunk at the moment of trade, buyers may refrain from incurring them for fear of later opportunism on the part of sellers. It is found that the...