In this paper, we define hedge operation on a residuated skew lattice and investigate some its properties. We get relationships between some special sets as dense, nilpotent, idempotent, regular elements sets and their hedges.  By examples, we show that hedge of a dense element is not a dense and hedge of a regular element is not a regular. Also hedge of a nilpotent element is a nilpotent and h...

agricultural activities are risky activities. in these activities, various natural, social and economic risks have created fragile and vulnerable situation for producers. price risk in agricultural products has caused financial problems for many producers and farmers. to deal with these price risks and price fluctuations, there are varieties of tools. this paper focused on futures markets instr...

This research attempts to develop an analytical framework for hedge fund investment. Various issues related to the hedge fund investment have been addressed. This paper focuses on three distinct areas of hedge fund research, namely, bias in hedge fund data, the classification of hedge funds, and performance attribution of hedge funds. All studies, reported in this paper, have been carried out u...

Hedge fund databases vary as to the type of funds to include and in their classification scheme. Investment strategy and/or investment style are the basis for classification. Considerable variation is observed in the definitions, return calculation methodologies, and assumptions. There exists a myriad of classifications, some overlapping and some mutually exclusive. There is a need for an ‘alte...

We examine the value of fund of funds (FoFs) using a new database of the funds’ hedge fund holdings. This data allows a first ever look at the types of hedge funds that FoFs select, as well the ability to gauge the FoFs’ skill at hiring and firing hedge fund managers. We find that FoFs hire larger, younger, and more illiquid hedge funds that have positive past performance. FoFs select hedge fun...

We propose an algebra of regular hedge expressions built on top of regular hedge grammars as a framework for the analysis and manipulation of hedge languages. We show how linear systems of hedge language equations (LS for short) can be used as an intermediate representation on which to perform the computation of quotient, intersection, product derivative, and factor matrix of regular hedge lang...

We acknowledge the LBS Centre for Hedge Fund Research and Education for providing the hedge fund data used in this paper. Earlier versions of this paper were presented at Abstract This paper studies the risk in fixed-income hedge fund styles. Principal component analysis is applied to groups of fixed-income hedge funds to extract common sources of risk and return. These common sources of risk a...

We propose linear systems of hedge language equations (LSH) as a formalism to represent regular hedge languages. These linear systems are suitable for several computations in the algebra of regular hedge languages. We indicate algorithms to translate between representations by hedge automata and LSH, and for the computation of LSH for the intersection, quotient, left and right factors of regula...

We acknowledge the LBS Centre for Hedge Fund Research and Education for providing the hedge fund data used in this paper. Earlier versions of this paper were presented at Abstract This paper studies the risk in fixed-income hedge fund styles. Principal component analysis is applied to groups of fixed-income hedge funds to extract common sources of risk and return. These common sources of risk a...