This article examines whether the information advantage of brokerage services affects the housing market in terms of search cost and price dispersion and actually elevates pricing and price search efficiency. Empirical results indicate that the dispersion of transaction price is lower than that of listed price. Further, the dispersion of listed price with brokerage service is not resembled that of for-sale-by-owner (FSBO), but the dispersion of transaction price with brokerage service was lower than that of FSBO. Restated, for strategic considerations, brokers should not advise sellers to adjust asking prices, but they should decrease the dispersion of transaction prices with high search density.