If a company's tax rate goes up, but all other variables stay the same and the yield to maturity of its noncallable bonds doesn't change, then its weighted cost of capital should go down. The right response in this case is option A.
The weighted average cost of capital (WACC) is the average rate an organization pays to finance its assets (WACC). It is determined by averaging the rates of all the company's capital sources and weighting the results according to the relative importance of each component.
They also overwhelmingly suggest that tax hikes can enhance government revenue, but frequently at the price of citizens' economic mobility and progress.
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