本研究以1997至2001年國內高研發密度之上市上櫃公司為研究對象，探討高研發密度公司揭露非盈餘以及智慧資本相關資訊之行為。首先探討企業揭露資訊之偏好及趨勢，再分析影響企業揭露非盈餘及智慧資本資訊頻率之因素，並探討企業股價與帳面價值間之差異及股票週轉率與企業揭露智慧資本相關資訊之關聯性。

實證結果發現，公司主動揭露與盈餘有關資訊之頻率有逐年下滑的現象，而揭露非盈餘及智慧資本相關資訊的頻率則有逐漸升高的趨勢。以分組檢定結果而言，未預期盈餘為正且幅度較大的公司在揭露智慧資本資訊方面顯著較未預期盈餘為負且幅度較大的公司積極。就影響企業揭露非盈餘以及智慧資本相關資訊之因素而言，未預期盈餘、員工每人營業利益、研發密集度，以及每人配備率與揭露非盈餘及智慧資本相關資訊之次數均呈顯著正向關係，而董監事持股比率以及用人費用率則與兩項資訊之揭露次數呈顯著負相關。

此外，屬於資訊電子業以及規模較大的公司，揭露非盈餘及智慧資本相關資訊之意願較強。就企業股價與帳面價值之差異以及股票流動性而言，資訊電子業之股價淨值比及股票週轉率均較非資訊電子業為高，策略聯盟（流程資本）資訊揭露次數與股價淨值比呈顯著正（負）向關係，新產品及策略聯盟（人力資本）資訊揭露次數則與股票週轉率呈顯著正（負）相關。

關鍵字：自願性揭露、智慧資本、市價淨值比

Based on a sample of firm listed on TSE, this thesis investigates the voluntary disclosure behavior ofR&D intensive companies in Taiwan over the period of 1997 to 2001. With an emphasis on non-earnings and intellectual capital-related disclosure policies, we first explore the disclosure behavior in terms of frequency and type of information revealed by management. We then examine whether price-to-book (P/B) ratio and stock turnover ratio reflect the disclosure of non-earnings and intellectual capital-related information.

The empirical results suggest a declining trend in disclosing earnings information, with an opposite tendency in non-earnings information over the period examined. In addition, unexpected earnings and variables proxy for intellectual capital determine the disclosure behavior of non-earnings and intellectual capital-related information. Firms with operating performance far beyond market's expectation tend to disclose more intellectual capital-related information than firms with operating performances far worse than market has expected. Variables such as operating income per employee and cost of human resource (proxies for human capital), R&D intensity (proxy for innovation capital), equipment per employee (proxy for process capital) as well as the ratio of directors' shareholding are found to be significantly related to the disclosure frequency of non-earnings and intellectual capital-related information.

The findings also indicate that electronics and software industries are more likely to disclose more non-earnings and intellectual capital-related information and have higher price-to-book and stock turnover ratios as compared to other industries in the sample. Firms disclose more (less) strategic alliance (process capital) information is found to have higher price-to-book ratios. Firms disclose more (less) strategic alliance and new product (human capital) information is found to have higher stock turnover ratio. It appears that more disclosure on intellectual capital-related information does not necessarily and monotonously explain the variation in both price-to-book and stock turnover ratios.

Key words: voluntary disclosure, intellectual capital, price-to-book ratio, stock turnover ratio