We investigate entropy as a financial risk measure. Entropy explains the equity premium of securities and portfolios in a simpler way and, at the same time, with higher explanatory power than the beta parameter of the capital asset pricing model. For asset pricing we define the continuous entropy as an alternative measure of risk. Our results show that entropy decreases in the function of the n...

Keywords: Capital asset pricing model (Capm) Capital asset pricing theory Finance theory Hedonic pricing Portfolio theory Residential rental real estate investment (RRREI) Security market line Systematic/unsystematic risk

The choice of model of normal returns in event studies has been widely discussed in the literature. While researchers frequently continue to use an array of alternatives, there is currently some tendency to favour cruder but simpler meanor marketadjusted returns models. This paper presents a general-to-specific model selection framework for testing the data admissibility of the principal models...

Adrian and Franzoni (2005) suggest that beta of a stock is determined by the factor loading of its unobservable long-run beta. The fundamental idea behind this model is that investors engage in a learning process of estimating this long-run beta. In this paper, a variation of this model is tested. Instead of estimating long-run beta, investors try to learn about factor loading. Given the long-r...

We explore theoretically and experimentally the general equilibrium price and allocation implications of delegated portfolio management when the investor-manager relationship is non-exclusive. Investors transfer their securities allocations to managers, managers trade in a competitive marketplace to achieve new allocations, and payo↵s are distributed back to investors after subtraction of a por...

Context-aware power management (CAPM) uses context (e.g., user location) likely to be available in future ubiquitous computing environments, to e ectively power manage a building's energy consuming devices. The objective of CAPM is to minimise overall energy consumption while maintaining user-perceived device performance. The principal context required by CAPM is when the user is not using and ...

We consider a financial market in which two securities are traded: a stock and an index. Their prices are assumed to satisfy the Black–Scholes model. Besides assuming that the index is a tradable security, we also assume that it is efficient, in the following sense: we do not expect a prespecified self-financing trading strategy whose wealth is almost surely nonnegative at all times to outperfo...

This paper contributes to the debate about the extent to which liquidity risk affects asset prices. Motivated by evidence on downward liquidity spirals, flights to liquidity and investor perceptions of risk, we develop and test a liquidity-adjusted capital asset pricing model in which the key innovation is separating liquidity risk into asymmetric upside and downside risks. Our model bridges th...

Article history: Received 6 September 2011 Accepted 13 February 2012 Available online 8 March 2012 A number of recent papers have developed multifactor extensions of the classic consumption capital asset pricing model (CCAPM) and generally concluded that conditioning information improves the empirical performance. This paper asks whether the superior empirical performance of the multifactor CCA...