台灣近年規範企業應依循TCFD與SASB框架，對照產業別來揭露所重視之重大性議題，揭露這些與公司財務呈現高度相關的永續資訊將影響投資者的決策。此外，在資本市場中，分析師的建議為眾多投資者參考的重要指標，深刻影響投資者之投資決策。本論文著重於探討美國的SASB重大性議題揭露準則，是否同樣適用於台灣上市櫃公司，並能有效降低分析師預測誤差。研究中使用Bloomberg資料庫的ESG揭露項目，根據SASB的產業分類方法（SICS）對產業進行對照、細分，計算出重大性議題、非重大性議題揭露程度。研究結果表明，重大性議題的揭露和分析師預測誤差呈現負相關，而非重大性議題的揭露和分析師預測誤差呈現正相關，惟統計皆不具顯著性。

This paper focuses on whether the U.S. SASB materiality disclosure standards also apply to Taiwan-listed companies and can effectively reduce analysts' forecast errors. In recent years, Taiwan has mandated that companies should follow the TCFD and SASB frameworks to disclose material issues of importance by the industry sector. In addition, in the capital markets, analysts' recommendations are an important indicator for many investors to consider and provide insight into their investment decisions. In this study, the ESG disclosure items of the Bloomberg database were used to compare and subdivide industries according to SASB's Industry Classification System (SICS) to calculate the degree of materiality and non-materiality disclosure. The results show that there is a negative correlation between the disclosure of immaterial issues and analysts' forecast errors, while there is a positive correlation between the disclosure of immaterial issues and analysts' forecast errors, but none of them are statistically significant.

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