The monthly return distributions of many hedge fund indices exhibit highly unusual skewness and kurtosis properties as well as first-order serial correlation. This has important consequences for investors. We demonstrate that although hedge fund indices are highly attractive in mean-variance terms, this is much less the case when skewness, kurtosis and autocorrelation are taken into account. Sh...

The efficacy of pregabalin in acute postsurgical pain has been demonstrated in numerous studies; however, the analgesic efficacy and adverse effects of using pregabalin in various surgical procedures remain uncertain. We aim to assess the postsurgical analgesic efficacy and adverse events after pregabalin administration under different surgical categories using a systematic review and meta-anal...

This paper continues our investigation on hedge albebras [6]. We extend hedge algebras by two additional operations corresponding to infimum and supremum of the so-called concept category of an element x, i.e. the set which is generated from x by means of the hedge operations. It is shown that every extended hedge algebra with a lattice of the primary generators is a lattice. In the symmetrical...

This paper analyzes hedge fund investors’ geographical preference and its implication for hedge fund performance. We document that funds of funds overweigh their investments in hedge funds located in the same cities by 6 to 15 percent. We also find that funds of funds with a stronger local bias exhibit superior performance. However, this local bias of funds of funds can adversely impact the hed...

It is shown that any sets of linguistic values of linguistic variables can be axiomatized, which leads to a notion of hedge algebras. Some intuitive properties of linguistic hedges, which are a basis of the axiomatization of the hedge algebras, are discussed informally. The characteristics of the hedge algebras depend on such a discussion and they seem to reflect the natural structure of sets o...

the language used by women and men differ in all speech communities. in order to examine some of these variations, the present study aimed to investigate the differences in an informal written discourse. for this purpose, a comparison between men’s and women’s informal language was made regarding length of utterances, questions, intensifiers, and hedges. results revealed that men employed highe...

A lockup period for investment in a hedge fund is a time period after making the investment during which the investor cannot freely redeem his investment. It is routine to have a one-year lockup period, but recently the requested lockup periods have grown longer. Assuming that the investor will rebalance his portfolio of hedge funds on a yearly basis, if permitted, we define the annual lockup p...

The possibility that hedge fund trading destabilizes or creates a volatile market is frequently debated. This hypothesis is in stark contrast to the traditional speculative stabilizing theory that profitable speculation must involve buying when the price is low and selling when the price is high. To test the hypothesis that hedge fund trading is destabilizing we employ a unique dataset from the...

Hedge detection aims to distinguish factual and uncertain information, which is important in information extraction. The task of hedge detection contains two subtasks: identifying hedge cues and detecting their linguistic scopes. Hedge scope detection is dependent on syntactic and semantic information. Previous researches usually use lexical and syntactic information and ignore deep semantic in...