In the portfolio selection problem, the manager considers several objectives simultaneously such as the rate of return, the liquidity and the risk of portfolios. These objectives are conflicting and incommensurable. Moreover, the objectives can be imprecise. Generally, the portfolio manager seeks the best combination of the stocks that meets his investment objectives. The imprecise Goal Program...

McKinsey–Tarski (1944), Shehtman (1999), and Lucero-Bryan (2011) proved completeness theorems for modal logics with modalities 2, 2 and ∀, and [∂] and ∀, respectively, with topological semantics over the real numbers. We give short proofs of these results using lexicographic sums of linear orders.

The paper investigates the public’s attitude towards monetary union arrangements associated with different levels of monetary policy autonomy. The results indicate that support for monetary union declines significantly with expected loss of autonomy. Survey data from Kenya shows that public support for the proposed East African Community monetary union is highest in an arrangement where the cou...

the purpose of this study was to examine various factors influencing spectators' attendance in professional soccer games in tehran. this research was a descriptive survey. the questionnaire used in this study was developed by green (1995), hansen and gauthier (1989), kaskey (1999), schofield (1983) and zhang et al. (1995) in order to examine factors affecting spectators' attendance in...

While prior studies have provided us with an initial understanding of people‟s location-sharing privacy preferences, they have been limited to Western countries and have not investigated the impact of the granularity of location disclosures on people‟s privacy preferences. We report findings of a three-week comparative study collecting location traces and location-sharing preferences from two c...

The distinction between concrete and abstract concepts is psychologically valid but so far it can hardly be quantified in any objective way, which prevents it from being further studied in computational linguistics. This paper proposes a systematic way to measure concreteness from the surface structure of dictionary definitions. Comparing the scores from WordNet definitions with human ratings, ...

In most developed countries, gender equality and neutrality have been widely promoted and embraced— through public policy—as a socio-cultural goal since at least the mid-twentieth century. Accordingly, we predicted that a population of highly educated youth from a relatively wealthy developed country (mostly students from a Canadian university) would display little or no significant gender bias...

Food manufacturers need to understand the taste preferences of their consumers in order to develop successful new products. The existence of consumer segments that differ in systematic ways in their taste preferences can have important implications for product development. Rather than developing a product to please all potential consumers, the manufacturer may decide to optimize the product for...