Evaluating Signaling Strategies

A used car dealership wants to convince potential buyers that its vehicles are of high quality and reliable. To do this, it must send a credible message that a dealership selling low-quality, unreliable cars would find too costly to imitate. Which of the following strategies would be the LEAST effective at credibly signaling high quality?

Dealership Pricing and Warranty Strategy

In a market with both high-quality and low-quality used cars, a seller offering a very inexpensive, short-term warranty is effectively and credibly signaling that their car is of high quality.

Credibility of Market Signals

In a used car market where buyers cannot easily tell the difference between reliable and unreliable cars, sellers can use certain actions to communicate the quality of their vehicle. Match each seller's action with its most likely economic implication.

In a used car market where buyers cannot distinguish between high-quality and low-quality vehicles, a seller of a high-quality car can offer a comprehensive warranty to distinguish their product. Why is this action considered a credible signal?

A government regulator, concerned about buyers purchasing low-quality used cars, mandates that all used car sellers must provide a standardized 30-day warranty on every vehicle sold. From an economic perspective, why would this policy likely fail to function as a credible signal to help buyers distinguish high-quality cars from low-quality ones?

Impact of Technological Change on Market Signals

Erosion of a Market Signal