Comments.

The author in this article analyzes a paper which discussed the subject of trade liberalization over product categories in free trade agreements (FTA) particularly in Japan, China and Korea. He also cited empirical results from two indexes used by the author of the paper, namely the index of sensitivity (ISD) and the index of dispersion power (IDP). The author believes that the empirical results presented by the paper could be more supported with further discussion of the effects of these results and policy interpretations.