Towards the Compilation of a Consistent Asian International I-O Table--The Report of the General Survey on National I-O Tables--

This paper reports on the survey of the characteristic features of national input-output tables compiled by the member countries of the Asian International Input-Output Table project. In making any inter-regional tables, the presentation format of each constituent table has to be carefully studied in order to design a common adjustment rule. The survey was conducted in the period of 2003-04, with invaluable cooperation from each collaborating institution of the project. Some analytical findings are drawn from the survey results, such as the similarity between each national table and the Japanese table, the responsiveness to the 1993 SNA, and the major areas of conflict regarding the presentation format.

Evaluation of Non-Survey International IO Construction Methods with the Asian-Pacific Input-Output Table

This paper presents four non-survey methods to construct a full-information international input-output table from national IO tables and international import and export statistics, and this paper tests these four methods against the semi-survey international IO table for nine East-Asian countries and the USA, which is constructed by the Institute of Developing Economies in Japan. The tests show that the impact on the domestic flows of using self-sufficiency ratios is small, except for Singapore and Malaysia, two countries with large volumes of smuggling and transit trade. As regards the accuracy of the international flows, all methods show considerable errors, of 10%-40% for commodities and of 10%-70% for services. When more information is added, i.e. going from Method 1 to 4, the accuracy increases, except for Method 2 that generally produces larger errors than Method 1. In all, it seems doubtful whether replacing the semi-survey Asian-Pacific IO table with one of the four non-survey tables is justified, except when the semi-survey table itself is also considered to be just another estimate.