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Effects of Firm Size, Financial Leverage and R&D Expenditures on Firm Earnings: An Analysis Using Quantile Regression Approach

机译:公司规模,财务杠杆和R&D支出对公司收益的影响:使用分位数回归方法的分析

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摘要

As documented in the literature, the effects of firm size, financial leverage, and R&D expenditures on firm earnings are inclusive. Our hypothesis is that the inconsistent empirical results of such effects may be driven by the regression models implemented in data analysis. Using the quantile regression (QR) approach developed by Koenker and Basset (1978), this study analyses S&P 500 firms from 1996 to 2005. We find that the effects of firm size, financial leverage and R&D expenditures on firm earnings differ considerably across earnings quantiles. Comparing the results from the QR approach with those from the ordinary least squares (OLS) and least absolute deviation (LAD) methods, this study further explains the puzzling relationship between firm size, financial leverage, R&D expenditures and firm earnings.
机译:如文献所述,公司规模,财务杠杆和研发支出对公司收益的影响是包容性的。我们的假设是,这种影响的不一致的经验结果可能是由数据分析中实施的回归模型驱动的。使用Koenker和Basset(1978)开发的分位数回归(QR)方法,本研究分析了1996年至2005年的S&P 500公司。我们发现,公司规模,财务杠杆和R&D支出对公司收益的影响在收益分位数之间存在很大差异。将QR方法的结果与普通最小二乘法(OLS)和最小绝对偏差(LAD)方法的结果进行比较,本研究进一步解释了公司规模,财务杠杆,R&D支出和公司收益之间令人困惑的关系。

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