Extended omega ratio optimization for risk-averse investors

2015 ◽  
Vol 24 (3) ◽  
pp. 485-506 ◽  
Author(s):  
Amita Sharma ◽  
Aparna Mehra
Keyword(s):  
Risk Averse ◽  
Omega Ratio ◽  
Ratio Optimization

scholarly journals Hedge effectiveness of put replication, gold, and oil on ASEAN-5 equities

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Robiyanto Robiyanto ◽  
Bayu Adi Nugroho ◽  
Eka Handriani ◽  
Andrian Dolfriandra Huruta
Keyword(s):  
Capital Markets ◽  
Capital Market ◽  
Market Integration ◽  
The Philippines ◽  
Money Market ◽  
Risk Averse ◽  
Capital Market Integration ◽  
Financial Products ◽  
Hedging Effectiveness ◽  
Omega Ratio

AbstractThe previous studies have shown that capital market integration has increased in the ASEAN-5, implying that investors making investment diversification across ASEAN capital markets could only earn limited diversification advantages. To diversify their portfolios, equity investors must find other assets. The main focus of this research is to analyze the effectiveness of put replication, gold, and oil on hedge equities in the ASEAN-5 (Indonesia, Malaysia, Singapore, Thailand, and the Philippines). Protective put strategy, DCC-GARCH, and Markowitz optimization are used to measure hedge effectiveness, risk-adjusted-performance such as Sharpe ratio, drawdown, and Omega ratio. The result reveals that gold is a cheaper hedge than oil and oil-hedged strategy is more expensive in ASEAN-5 compared to oil exporting nations. Also, investors with big exposure to the oil-related portfolio should diversify to Philippine equity. From hedging effectiveness and risk-adjusted-performance perspectives, oil is less attractive than money market instruments and gold. This study also implies that risk-averse investors should prefer to put replication or guaranteed financial products compared to commodities-hedged strategy.

Life after Heart Transplantation

2002 ◽  
Vol 7 (4) ◽  
pp. 285-294 ◽  
Author(s):  
Lucia Savadori ◽  
Lorella Lotto ◽  
Rino Rumiati
Keyword(s):  
Heart Transplantation ◽  
Frame Of Reference ◽  
Physician Communication ◽  
Risk Averse ◽  
Medical Team ◽  
Perceived Knowledge ◽  
Surgical Technology ◽  
Postoperative Therapy ◽  
Life Expectation ◽  
Risk Judgments

Progress in surgical technology and in postoperative therapy has remarkably increased life expectation after heart transplantation. Nevertheless, patients still show a resistance to resume a normal life after transplantation, for example, to return to work. In this study we assume that after surgery patients become risk averse because they achieve a positive frame of reference. Because of this propensity toward risk aversion, they withhold from engaging in behavior that their physical condition would allow them in principle. Coherent with this assumption we found that compared to the medical team patients overestimate the degree of risk for routine activities. The study also showed that the representation of risk by the patients could be captured by a dreadfulness factor and a voluntariness factor. Patients' risk judgments were strongly and specifically predicted by the perceived degree of dreadfulness of the activity and, to a lesser extent, by the perceived knowledge of the consequences. Implications for patient-physician communication were explored.

Risk Attitude and Corporate Investment under Output Market Uncertainty: Evidence from The Mekong River Delta, Vietnam

2016 ◽  
pp. 59-70
Author(s):  
Ninh Le Khuong ◽  
Nghiem Le Tan ◽  
Tho Huynh Huu
Keyword(s):  
Negative Relationship ◽  
Risk Attitude ◽  
Business Strategies ◽  
Risk Averse ◽  
Market Uncertainty ◽  
Firm Investment ◽  
Output Market ◽  
The Impact ◽  
The Relationship

This paper aims to detect the impact of firm managers’ risk attitude on the relationship between the degree of output market uncertainty and firm investment. The findings show that there is a negative relationship between these two aspects for risk-averse managers while there is a positive relationship for risk-loving ones, since they have different utility functions. Based on the findings, this paper proposes recommendations for firm managers to take into account when making investment decisions and long-term business strategies as well.

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