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asset returns. Our contribution is to develop a framework that allows for ambiguity about the joint distribution of returns … for all stocks being considered for the portfolio, and also for different levels of ambiguity for the marginal … international equity returns. The calibration shows that when the overall ambiguity about the joint distribution of returns is high …
Persistent link: https://www.econbiz.de/10005504745
In this paper, we show how an investor can incorporate uncertainty about expected returns when choosing a mean-variance optimal portfolio. In contrast to the Bayesian approach to estimation error, where there is only a single prior and the investor is neutral to uncertainty, we consider the case...
Persistent link: https://www.econbiz.de/10005791415
In this paper, we show how an investor can incorporate uncertainty about expected returns when choosing a mean-variance optimal portfolio. In contrast to the Bayesian approach to estimation error, where there is only a single prior and the investor is neutral to uncertainty, we consider the case...
Persistent link: https://www.econbiz.de/10005124485
assets - and Markowitz - who advocates diversification across assets. We rely on the concepts of ambiguity and ambiguity … degree of ambiguity across assets, and (ii) the standard deviation of the estimate of expected return on each asset. If the … standard deviation of the expected return estimate and the difference between the ambiguity about familiar and unfamiliar …
Persistent link: https://www.econbiz.de/10008468537
We use data from a television game show, involving elementary lotteries and substantial prize money, as a natural experiment to measure risk attitudes. We find robust evidence of substantial risk aversion. As an extension, we esimate the various models using transformations of the ‘true’...
Persistent link: https://www.econbiz.de/10005661826
This Paper contributes ideas and analysis to the ongoing EU reform debate. It consists of three distinct parts: voting in the Council of Ministers, restructuring the ECB's Governing Council, and the setting of enlargement “examination” dates. The IGC currently focuses on Council voting,...
Persistent link: https://www.econbiz.de/10005504315
This short paper analyses the tension between "widening" and "deepening" of organizations such as the European Union. Members have the same consumption benefit of reform but weak and strong members differ in their cost of exerting reform efforts. As decisions are taken by unanimity, the reform...
Persistent link: https://www.econbiz.de/10005504398
It is well known that ex post efficient mechanisms for the provision of indivisible public goods are not interim individually rational. However, the corresponding literature assumes that agents who veto a mechanism can enforce a situation in which the public good is never provided. This paper...
Persistent link: https://www.econbiz.de/10005504573
The decision-making rules of the European Union (EU) are defined in an incomplete contract signed by 15 national governments. The design of the contract defines the set of policy issues where it applies – in decision-making rules i.e. the majority rules and the division of powers among the...
Persistent link: https://www.econbiz.de/10005504730
Should privately informed agents with diverging interests act independently or should they commit to a mechanism? This paper analyzes different communication and decision protocols when communication involves delay. It studies under which conditions agents should (i) choose their actions...
Persistent link: https://www.econbiz.de/10005498109