  An important goal of online comparison shopping services is to "convert" a
viewer from general product category pages (for example product groups such as
"smartphones" or "air-conditioners") to detailed product pages and ultimately
to order pages. Comparison shopping websites provide a familiar web interface
as well as a chance for consumers to purchase items at competitive prices. In
return for providing access to a large market of potential consumers, the
comparison shopping service usually receives financial compensation for product
clicks and orders. This study looked at 2.5 million product listing visits at
price.com.hk to determine whether a modification in the way prices are
displayed on general category pages resulted in more "conversions" to product
detail pages. We found a statistically significant improvement over-all as a
result of the new price display resulting in 3.6% more product clicks over all
categories. Additional analysis showed that the effect is heterogeneous among
different categories, and in a few cases there may be some categories
negatively affected by the display modification.
