رقابت محصولات چوب با تحول فیبر های مختلف و منابع وارداتی

Japan and China have been two leading importers of wood products in the global market, and the trade pattern for China since 1993 has largely repeated that for Japan in the 1960s. In this study, the import demand of wood products in Japan and China between 1995 and 2013 by product type and source is assessed using the translog cost function and cointegration analysis. Wood products are classified into three main types by the degree of processing and transformation on wood fiber: roundwood, sawnwood, and wood-based panels. The own-price elasticities are overall inelastic, but they can become very elastic for some source-differentiated products (e.g., sawnwood import by Japan and roundwood import by China from the United States). Clear substitutability across product types and supplying sources is identified. Wood products with a different degree of processing or from different sources can be substituted with each other when they are used by wood-utilizing industries in the importing countries. The substitute relation will continue to present both opportunities for economic development and challenges for global environment protection.