Showing 1 - 10 of 42
Collective concerns about sustainable development and proposals about how to achieve sustainability have produced a confusing body of terminology that is more like a jungle of issues than a framework to enable focused action. Businesses, in particular, with their global reach, influence,...
Persistent link: https://www.econbiz.de/10005062681
Given the call for the development of an accounting conceptual framework, this paper rejects the need for such an undertaking. Using a historical methodology this paper traces the existence of an accounting conceptual framework that painstakingly has been established over the centuries. The...
Persistent link: https://www.econbiz.de/10005413174
We propose a model of portfolio selection under ambiguity, based on a two-stage valuation procedure which disentangles ambiguity and ambiguity aversion. The model does not imply 'extreme pessimism' from the part of the investor, as multiple priors models do. Furthermore, its analytical...
Persistent link: https://www.econbiz.de/10005134917
We propose a novel portfolio selection approach that manages to ease some of the problems that characterise standard expected utility maximisation. The optimal portfolio is no longer defined as the extremum of a suitably chosen utility function: the latter, instead, is reinterpreted as the...
Persistent link: https://www.econbiz.de/10005413052
A quadratic discrete time probabilistic model, for optimal portfolio selection in (re-)insurance is studied. For positive values of underwriting levels, the expected value of the accumulated result is optimized, under constraints on its variance and on annual ROE's. Existence of a unique...
Persistent link: https://www.econbiz.de/10005125679
In this paper we tackle the problem of the presence of negative average rate of returns in the computation of the performance of ethical mutual funds. The presence of these negative values raises problems both in the computation of the classical performance indicators and in DEA modeling. In...
Persistent link: https://www.econbiz.de/10005062743
The paper is an updated first performance evaluation study of the Polish pension funds operating from 1999. The unconditional performance evaluation models are used. It is shown that pension fund managers did produce additional value due to active management. Therefore, unsatisfactory overall...
Persistent link: https://www.econbiz.de/10005413168
Data Envelopment Analysis (DEA) is a linear programming based method for evaluating performance of comparable production units such as firms. Although the method is already extensively applied in many areas of economics, its use in environmental economics and related fields remains limited. The...
Persistent link: https://www.econbiz.de/10005556149
Many performance measures, such as the classic Sharpe ratio have difficulty in evaluating the performance of mutual funds with skewed return distributions. Common causes for skewness are the use of options in the portfolio or superior market timing skills of the portfolio manager. In this...
Persistent link: https://www.econbiz.de/10005413128
The Commitment to Development Index of the Center for Global Development rates 21 rich countries on the “development-friendliness” of their policies. It is revised and updated annually. In the 2004 edition, the component on foreign assistance combines quantitative and qualitative measures of...
Persistent link: https://www.econbiz.de/10005118812