It is well-known that stock prices fluctuate far more than dividends. Traditional valuation methods are not able to depict this fact. In this paper we incorporate excess volatility into a simple DCF model by considering an autoregressive cash flows process with random coefficients. We show that...

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...

We look at the theory of arbitrage with taxation under certainty. The tax scale in our model is not linear. Under the premise that tax scale is convex, we analyze prices that do not exhibit arbitrage opportunities. It turns out that there are two kinds of arbitrage: unbounded as well as bounded...