We examine the pricing performance of various measures of dealer risk appetite. We construct a novel measure of risk appetite that captures the provision of leverage to the clients of broker-dealer firms. We also construct a factor mimicking portfolio that tracks shocks to the leverage of...

Paper Length: 24 PagesSuplementary Material: 88 Pages (mostly graphics)This paper applies rolling windows to generate time-varying data series of selected chaos measures (i.e. Hurst exponent, maximum Lyapunov exponent, Lyapunov sum and sample entropy). The generated series are analysed to...

An option is a financial instrument that allows the holder to buy or sell an underlying security in the future at an agreed strike or price set today. European options are often priced under the assumption of constant interest rates as seen in the Black-Scholes (1973) model.In interest rate...

In this paper we consider a general class of diffusion-based models and show that, even in the absence of an Equivalent Local Martingale Measure, the financial market may still be viable, in the sense that strong forms of arbitrage are excluded and portfolio optimisation problems can be...

Part 1: Portfolio Management -- Chapter 1. Return -- Chapter 2. Risk -- Chapter 3. Other Investment Characteristics -- Chapter 4. Efficient Risky Portfolios -- Chapter 5. Optimal Portfolio -- Chapter 6 Capital Asset Pricing Model and Fama−french Model -- Chapter 7. Portfolio Management Process...

This study proposes a wavelets approach to estimating time-frequency-varying betas in the capital asset pricing model (CAPM) framework. The dynamic of systematic risk across time and frequency is analyzed to investigate stock risk-profile robustness. Furthermore, we emphasize the effect of an...

We add discrete jumps in the time-to-maturity of a firm's debt to the model of Engle and Siriwardane (2015), such that changes in equity volatility can be explained by the volatility of the firm's assets, its market leverage and investors' perception of the time-to-maturity of the firm's debt....

The Sharpe-Lintner Capital Asset Pricing Model (CAPM) implies a simple linear equation for pricing risky financial assets, individually and in portfolios. CAPM finds that the relevant risk measure of individual financial assets held as a portion of a well-diversified portfolio is not a variance...