what is discussion of minimal property?
Answers
The difference between mandatory and minimal is not very clear.
If a property is mandatory, i.e. it is expected to exist, shouldn't be also considered to be part of the minimal set?
In my opinion the application profile should be as clear as possible. We can have a very limited set of mandatory properties (possibly coinciding with what we mean by minimal) and leave the others as optional.
It's an open world after all and people can decide themsevles which of the optional ones fit their purposes.
hope this is useful
Answer:
In portfolio optimization problems, the minimum expected investment risk is not always smaller than the expected minimal investment risk. That is, using a well-known approach from operations research, it is possible to derive a strategy that minimizes the expected investment risk, but this strategy does not always result in the best rate of return on assets. Prior to making investment decisions, it is important to an investor to know the potential minimal investment risk (or the expected minimal investment risk) and to determine the strategy that will maximize the return on assets. We use the self-averaging property to analyze the potential minimal investment risk and the concentrated investment level for the strategy that gives the best rate of return. We compare the results from our method with the results obtained by the operations research approach and with those obtained by a numerical simulation using the optimal portfolio. The results of our method and the numerical simulation are in agreement, but they differ from that of the operations research approach.
Citation: Shinzato T (2015) Self-Averaging Property of Minimal Investment Risk of Mean-Variance Model. PLoS ONE 10(7): e0133846. doi:10.1371/journal.pone.0133846
Editor: Alejandro Raul Hernandez Montoya, Universidad Veracruzana, MEXICO
Received: April 8, 2015; Accepted: July 2, 2015; Published: July 30, 2015
Copyright: © 2015 Takashi Shinzato. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Data Availability: All relevant data are within the paper and its Supporting Information files.
Funding: There have been significant financial supports for this work as follows: 1. Grant-in-Aid for Young Scientists (B) Research Project Number: 24710169