Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Publication
Articles 1 - 3 of 3
Full-Text Articles in Social and Behavioral Sciences
Portfolio Evaluation, Downside Risk And An Anomaly, Ladd Kochman
Portfolio Evaluation, Downside Risk And An Anomaly, Ladd Kochman
Ladd Kochman
Owing to the developments in portfolio theory in the 1960s, the evaluation of portfolio performance has evolved from a return-only mentality to a process that makes risk no less important than return. Earliest efforts to combine the two dimensions into a single (or composite) measure belong to Treynor (1965) and Sharpe (1966), who suggested dividing a portfolio's return in excess of the risk-free rate by the portfolio's bets and standard deviation, respectively. When Fama (1972) recommended that portfolios pay premiums that capture both market and diversification risk, he was implicitly asking whether Jensen's (1968) use of beta sufficiently measures the …
Football Betting And The Neglected-Firm Effect: A Note, Ladd Kochman, David Waples
Football Betting And The Neglected-Firm Effect: A Note, Ladd Kochman, David Waples
Ladd Kochman
To the extent that betting is analogous to investing, it seems fair to think that the football-betting market could provide a legitimate test of the neglected-firm effect. In the context of football-betting, neglect as a predictor variable appears to possess no special qualities. Even as the basis for a contrarian rule (that is, betting on teams that are least-neglected), the condition of being overlooked generated a W/B ratio (52.30 percent) that was unable to hurdle the 52.38-percent breakeven rate. Clearly, from a neglected-teams perspective, the football-betting market is efficient. A broader conclusion might be that the neglected-firm effect has little …
Economic Modeling To Improve Estimates Of The Benefits Of Safety Management Systems, Kelly A. Whealan-George
Economic Modeling To Improve Estimates Of The Benefits Of Safety Management Systems, Kelly A. Whealan-George
Kelly Whealan George
Safety Management Systems (SMS) in aviation have the potential to minimize costs, protect profits, and increase shareholder value. However, a gap exists in SMS research between the acknowledged safety benefits of SMS and the identified economic benefits. In the current competitive marketplace, SMS will need to demonstrate economic viability through modeling before industry leaders are likely to adopt a voluntary process. This paper reviews the literature related to a variety of possible economic models applicable to measuring the benefits of the application and implementation of SMS in aviation organizations. While the ultimate goal is to increase safety, the utilization of …