The traditional literature on the CAPM assumes that investor's tax payments simply vanish from the model. This assumption is not at all consistent with the actual behavior of the Treasury. The theory of general equilibrium states that an interest rate rf = 0 will not affect prices if taxes are...

This note incorporates wealth taxes in a simple asset valuation model based on discounted cash flows. Any valuation method requires an adjustment of pre-tax into post-tax costs of capital. By adopting the adjustment procedure proposed in previous literature, we show that arbitrage opportunities...