Effective Tax Rates(ETR) are a biased proxy of political success because they may contain a factor, losses(LOSS), attributable to firm's operating results and experience rather than to success in the political process. To estimate the indirect effect ...
Effective Tax Rates(ETR) are a biased proxy of political success because they may contain a factor, losses(LOSS), attributable to firm's operating results and experience rather than to success in the political process. To estimate the indirect effect of LOSS, the path model with two structural equations is built to identify the links between firm size and effective tax rates mediated by LOSS, and the remaining direct link between firm size and effective tax rates. Variables in the structural equations are modeled by a latent-variable approach (measurement model). The path model and the measurement model are estimated by LISREL.
The results of the path model indicate that a significant portion of the firm size/tax rate relation was attributable to the indirect effects of the loss. Since loss result mainly from firms' operating characteristics rather than firm's political environment, the use of total effect of firm size on tax rates in previous studies to test the association of firm size and political success may be biased and can lead to improper conclusions.