earticle

영어

The analysis on the effective tax rates(ETR) is important to a tax policy maker and accounting researcher, ETR can be used when researchers assess the influence of the Tax Law on the business. Therefore, the analysis on the tax burden of the listed companies, and then the empirical analysis on whether the difference in ETR is created by that of the tax preference can give these explanations the theoretical foundation and confidence The purpose of this study is to know whether the ETR as a result of the empirical analysis the established research have showed makes some difference by business, period and industry, and the illustration which this result comes from the tax preference can be reliable or not. And it is to evaluate the influence of the Tax reform as well. The variation in ETR is classified by three components in this paper. (1) Income effect which estimates the influence of the fluctuation in the book income on ETR (2) Rate effect which presumes the influence of the lower rate on the ETR (3) Rule effect which assumes the effect of the change in the tax law. In this empirical analysis, the effectiveness of the Tax reform Act of 1991(TRA 1991) is evaluated by the process of performing the effect of the TRA 1991, by period, business site and industry. At the same time whether the difference of the ETR showed as the three result in the existing research by business, period and industry can be turned out additionally or not is tested. Each analysis draws a comparison the ETR, which is measured by the model that takes a measurement of the ETR, considering both income and the tax preference during the period of pre and post the tax reform.