Abstract:In this paper we present an evolutionary optimization approach to solve the risk parity portfolio selection problem. While there exist convex optimization approaches to solve this problem when long-only portfolios are considered, the optimization problem becomes nontrivial in the long-short case. To solve this problem, we propose a genetic algorithm as well as a local search heuristic. This algorithmic framework is able to compute solutions successfully. Numerical results using real-world data substantiate the… Show more
“…Forecasting (FC) was intensively studied by [35,5,36,37,38,39,40,27,41,42,43,44,45,46,47,48,49,2,50,51,52,53,54]. Portfolio optimization (PSP) is another extensive researched topic by, [55,56,57,58,59,60,61,30,62].…”
This paper investigates Small-Medium Banks’ (SMBs) business plans in accordance with the structure of Additional Funds Needed (AFN) model. The Key Profitability Variables (KPVs) are the size and structure of deposits, loans, and their interest rates. This study employs a Genetic Algorithm (GA) problem with hard constraints, to point out the limits to changes in the structure of deposits and loans and the effects of those changes on the P&L of a banking institution. After examining 10,000 iterations with Evolver, an innovative optimization software that uses GA, OptQuest, and linear programming, the alternations, have been narrowed down to 3700 which satisfy both, a) constraints and b) maximization of profits. Having also the distributions, this paper concludes that it is a useful methodology that must be further exploited by applying risk weights, mainly for credit risk, to the structural components of the Balance Sheet, and to other competitive institutions.
Keywords: banking institutions, genetic algorithms, additional funds needed, operational research
“…Forecasting (FC) was intensively studied by [35,5,36,37,38,39,40,27,41,42,43,44,45,46,47,48,49,2,50,51,52,53,54]. Portfolio optimization (PSP) is another extensive researched topic by, [55,56,57,58,59,60,61,30,62].…”
This paper investigates Small-Medium Banks’ (SMBs) business plans in accordance with the structure of Additional Funds Needed (AFN) model. The Key Profitability Variables (KPVs) are the size and structure of deposits, loans, and their interest rates. This study employs a Genetic Algorithm (GA) problem with hard constraints, to point out the limits to changes in the structure of deposits and loans and the effects of those changes on the P&L of a banking institution. After examining 10,000 iterations with Evolver, an innovative optimization software that uses GA, OptQuest, and linear programming, the alternations, have been narrowed down to 3700 which satisfy both, a) constraints and b) maximization of profits. Having also the distributions, this paper concludes that it is a useful methodology that must be further exploited by applying risk weights, mainly for credit risk, to the structural components of the Balance Sheet, and to other competitive institutions.
Keywords: banking institutions, genetic algorithms, additional funds needed, operational research
“…In all the proposed cases, portfolios with cost function value equal to zero achieve risk parity. Due to the non-smoothness and non-convexity of f RP 1 , f RP 2 and f RP 3 , approximation and heuristic approaches are used to solve the corresponding minimization problems (see, for instance, Hochreiter, 2015 andPalomar, 2015 ).…”
Section: Risk-parity Portfoliosmentioning
confidence: 99%
“…However, the existence and uniqueness of a solution to the risk parity portfolio selection problem can be guaranteed only in some special cases, for which ad hoc methods have been proposed in literature ( Bai et al, 2016;Griveau-Billion et al, 2013;Maillard et al, 2010;Spinu, 2013 ). The only effective tool for the general case is represented by the use of a heuristic algorithm that is able to find approximate solutions ( Hochreiter, 2015;Vijayalakshmi Pai and Michel, 2012 ).…”
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