Wednesday, December 5, 2012

Summary: What Signal Are You Sending? How Website Quality Influences Perceptions of Product Quality and Purchase Intentions (Wells et al. 2011)


Signaling theory has been widely used in the world of marketing. A study by Wells et al. (2011) attempted to use signaling theory in e-commerce marketing channel. This study applies the theoretical framework of the signal to provide a foundation for understanding how the quality of a website can reduce consumer skepticism that sometimes exist in evaluating products online. Signal is a clue (cue) that allows sellers to convey product quality information that cannot be observed buyers.

Signal is divided into extrinsic and intrinsic cues. Intrinsic cues are characteristics attached to a product, if changed could affect the nature of the product as a whole (e.g., komponen2 in a PC). Extrinsic cues are product attributes that are not attached, if changed will not change the nature of the product (e.g., brand, retailer reputation, price, warranty, store environment). Extrinsic values ​​are easier to observe, knowing that consumers have lack of knowledge of intrinsic attribute of a product. Therefore, optimization of extrinsic cues can influence consumer perceptions of product quality and subsequently affect purchase intentions.

Extrinsic cues also have a major role in influencing consumer perceptions of the quality of products sold online because of information asymmetries. Information asymmetries are associated with the barriers for consumers to evaluate the product directly. Information asymmetry highly occurs in experience-good (products that require direct evaluation before purchase, such as clothes, bags, food, etc.).

Study by Wells et al. (2011) made the quality of a website as an extrinsic cues for products sold on a website. They conducted 3 studies: (1) to check the validity and feasibility of the quality of a website to serve as a signal of product quality, (2) influence of product asymmetries of information when manipulating the quality of the website as a signal of the quality of the product, and (3) effects of signal credibility.

Based on the studies conducted, the quality of the website met criteria to be viable to use as signal of product quality. In particular, the quality of the website is informative guide to be extrinsic cue of the product and the most effective when two conditions are met: (1) high information asymmetries and (2) high signal credibility.

Read the complete paper here:

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