It is important to understand price premiums related to certified raw wood to predict the future of forest certifications from the perspective of forestry enterprises. We focused on identifying the trading roundwood market data in the economic center of power in Tokyo. This study aimed to clarify Tama-certified raw wood prices under the local area certification scheme, forest-certified raw wood prices, and the handling volumes at the Tama Roundwood Market Center in Tokyo. Sales details of the Tama Roundwood Market Center were used to identify the handling volumes, Tama-certified raw wood prices, and FSC (Forest Stewardship Council) or SGEC (Japan-specific Sustainable Green Ecosystem Council)-certified raw wood prices. The FSC and SGEC have operated from the center since 2016. Data were collected from the 2006–2018 fiscal years. Our results showed that the volume of raw wood handled increased due to the regeneration-cutting project conducted by the Tokyo Metropolitan Government. On the other hand, there was no price premium for Tama-certified raw wood under the local certification scheme or for FSC- or SGEC-certified raw wood. Price premiums for forest certifications are necessary for ongoing sustainable forest management. There is a need to increase consumer awareness of forest certifications and to differentiate quality certifications further, and these would likely create price premiums.

中文翻译：

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在日本东京的多摩圆木市场中心，经认证原木的差异化会改变平均价格吗？

重要的是要了解与认证原木有关的价格溢价，以便从林业企业的角度预测森林认证的未来。我们专注于识别东京经济中心的贸易圆木市场数据。这项研究的目的是弄清当地认证计划下多摩认证的原木价格，森林认证的原木价格，以及东京多摩圆木市场中心的处理量。多摩圆木市场中心的销售详细信息用于确定处理量，多摩认证的原木价格以及FSC（森林管理委员会）或SGEC（日本特定的可持续绿色生态系统委员会）认证的原木价格。自2016年以来，FSC和SGEC均从该中心开始运营。数据收集自2006-2018财政年度。我们的结果表明，由于东京都政府实施的再生砍伐项目，处理的原木数量有所增加。另一方面，根据当地认证计划，经Tama认证的原木或经过FSC或SGEC认证的原木均没有溢价。森林认证的价格溢价对于持续的可持续森林管理是必要的。有必要提高消费者对森林认证的认识，并进一步区分质量认证，而这有可能带来价格溢价。森林认证的价格溢价对于持续的可持续森林管理是必要的。有必要提高消费者对森林认证的认识，并进一步区分质量认证，而这有可能带来价格溢价。森林认证的价格溢价对于持续的可持续森林管理是必要的。有必要提高消费者对森林认证的认识，并进一步区分质量认证，而这有可能带来价格溢价。