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Welcome to web page of the International Association for Fuzzy-Set Management and Economy (SIGEF)

The facilities which SIGEF make available to its members are many and varied. The most important is be the organization of meetings, conferences, talks and similar activities allowing members to air their concerns, and to present ideas and work in progress. The international journal of the Association, FUZZY ECONOMIC REVIEW, plays a leading role by bringing together the most important projects devised by specialist and offering them a fundamentally practical opening into the business world, in pursuit of university-business cooperation which is both necessary and beneficial to both sides.

Latest news

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LOFTI ZADEH PASSED AWAY

On September 7th, Lofti Zadeh, creator and promoter of Fuzzy-Sets theory and honorary editor of the Fuzzy Economic Review, passed away. His work and his legacy is the forerunner of...

09-09-2017

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XIX SIGEF CONGRESS

For the information about XIX SIGEF Congress click here  

12-12-2016

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WELCOME TO THE NEW WEB OF SIGEF

This is the new web of SIGEF. We hope you find it useful. Please, if you have some questions or suggestions about it, don’t hesitate to contact us.

07-07-2015

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Last Fuzzy Economic Review

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Simulation decomposition: new approach for better simulation analysis of multi-variable investment p…

This paper presents a new method to enhance simulation-based analysis of complex investments that contain multi-variable uncertainty. The method is called “simulation decomposition”. Typically the result of simulation-based investment analysis...

Number 2, 2016

Fuzzy grouping variables in economic analysis. a pilot study of a verification of a normative model …

Many of the investments decisions facing with uncertainty can be characterized as real options problems. There is evidence of deviation from the predictions derived using such normative models. The proposed...

Number 2, 2016

Mixed models for risk aversion, optimal saving, and prudence

The models of this paper refer to mixed risk situations: one parameter is a fuzzy number and the other is a random variable. Three notions of mixed expected utility are...

Number 2, 2016

Real option approach for comparing lifetime costs of alternative diabetes type i treatment methods

This paper compares with cash flow simulation real option valuation method the costs of treating diabetes type 1 (T1D) with the commonly used multiple daily injection (MDI) method and the...

Number 2, 2016

Similarity classifier with weighted ordered weighted averaging operator

In this paper we present a similarity-based classifier that utilizes a weighted ordered weighted averaging (WOWA) operator in the aggregation of infor-mation. The aggregation process used in the WOWA operator...

Number 2, 2016

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