Development of an Extended Input-output Table Being Suitable for Analysis of Wood Use by Establishment of a New Pre-cut Lumber Sector

Abstract

The pre-cut lumber industry is a critical node in the distribution of lumber for construction and plays a significant role in driving demand for wooden products. However, it is categorized under the miscellaneous wooden products sector in the existing national input-output table (ex-IO) at present. In this study, based on mail surveys, interviews, and statistical data, we developed an extended input-output table suitable for analyzing wood use by establishing a pre-cut lumber sector and a new miscellaneous wooden products sector (new-WP) within the ex-IO framework. As a result, most of the input in the pre-cut lumber sector was lumber, and the ratio of gross value added accounted for 34.4% of total input. On the other hand, the input of the new-WP was diverse and not limited to lumber, and the ratio of gross value added accounted for 59.1% of total input. It shows that mechanization or automation in the pre-cut lumber industry had advanced like other lumber industries.