scholarly journals A FUZZY DECISION‐MAKING APPROACH FOR PORTFOLIO MANAGEMENT WITH DIRECT REAL ESTATE INVESTMENT

2009 ◽  
Vol 13 (2) ◽  
pp. 191-204 ◽  
Author(s):  
Eddie Chi Man Hui ◽  
Otto Muk Fai Lau ◽  
Kak Keung Lo
Keyword(s):  
Real Estate ◽  
Portfolio Management ◽  
Asset Allocation ◽  
Expert Knowledge ◽  
Programming Model ◽  
Investment Decision ◽  
Programming Approach ◽  
Fuzzy Decision Making ◽  
Real Estate Investment ◽  
Tactical Asset Allocation

This study incorporated expert knowledge into the classical quadratic programming approach, i.e., Modern Portfolio Theory (MPT), through fuzzy set theory; in obtaining portfolio return optimization involving direct real estate investment. Two fuzzy mathematical programming models were uniquely specified and estimated in this study, namely, Zimmer‐mann's (2001) fuzzy tactical asset allocation (FTAA) flexible programming model and Ramik and Rimanek's (1985) FTAA robust programming model. These approaches try to overcome the drawbacks of traditional asset allocation models by including expert adjustment in the presence of imprecise information. The findings suggest that the fuzzy tactical asset allocation (FTAA Flexible Model), with the inclusion of expert judgments which contain information usually not found in historical data, is able to produce a portfolio just as efficient as traditional asset allocation models while minimizing the potential issues due to imprecision and vagueness of information. Meanwhile, the FTAA Robust Model proffers a more evenly‐distributed, yet with higher risks and lower returns, portfolio. Aside from the lack of emphasis on portfolio risks minimization, one reason attributed to such anomaly is the low level of returns of high‐risk stocks that are not selected by MPT and FTAA Flexible Models. It results in a unique situation where portfolio diversification does not necessarily guarantee an efficient investment decision. Santruka Šis tyrimas itraukia ekspertines žinias i klasikine kvadratinio programavimo metodika, pavyzdžiui, moderniaja portfelio valdymo teorija, per neapibrežtuju aibiu teorija, siekiant optimizuoti portfelio graža, apimant tiesiogines nekilnojamojo turto investicijas. Šiame tyrime išsamiai aprašomi ir ivertinami du neapibrežtojo matematinio programavimo modeliai. Tai Zimmermann (2001) neapibrežtasis aktyvu paskirstymo lankstusis programavimo modelis ir Ramik bei Rimanek (1985) neapibrežtasis aktyvu paskirstymo robustinis programavimo modelis. Juos taikant bandoma pašalinti tradiciniu aktyvu paskirstymo metodu trūkumus itraukiant ekspertu siūlomus pakeitimus nesant tikslios informacijos. Nustatyta, kad neapibrežtasis aktyvu paskirstymas (neapibrežtasis aktyvu paskirstymo lankstusis programavimo modelis) kartu su ekspertu vertinimais, paprastai apimančiais informacija, kurios negalima rasti tarp istoriniu duomenu, leidžia sudaryti toki pati efektyvu portfeli, kaip ir tradiciniai aktyvu paskirstymo modeliai, tačiau minimizuojant potencialius nesutarimus, kuriu atsiranda del netikslios ir neapibrežtos informacijos. Neapibrežtasis aktyvu paskirstymo robustinis programavimo modelis siūlo tolygiau paskirstyta, tačiau rizikingesni ir ne toki pelninga portfeli. Be portfelio rizikos minimizavimo trūkumo, dar viena priežastis, priskiriama prie šios anomalijos, yra maža dideles rizikos akciju graža, kuri nera pasirenkama moderniojoje portfelio valdymo teorijoje ir neapibrežtuju aktyvu paskirstymo lanksčiuosiuose programavimo modeliuose. Kaip rezultatas gaunama unikali situacija, kai portfelio diversifikavimas nebūtinai garantuoja efektyvu investavimo sprendima.

scholarly journals ASSESSING REAL ESTATE INVESTMENT ALTERNATIVES: A MULTI-CRITERIA AND MULTI-STAKEHOLDER DECISION AID TOOL

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Vasileios A. Mantogiannis ◽  
Fotios A. Katsigiannis
Keyword(s):  
Real Estate ◽  
Financial Performance ◽  
Investment Decision ◽  
Investment Decisions ◽  
Real Estate Investment ◽  
Solution Approach ◽  
Decision Environment ◽  
Multi Stakeholder ◽  
The Uk ◽  
Severe Uncertainty

Investment decisions in private real-estate demand the consideration of several qualitative and quantitative criteria, as well as the different or even conflicting interests of the participating stakeholders. Meanwhile, certain indicators are subject to severe uncertainty, which will eventually alter the expected outcome of the investment decision. Even though multi-criteria decision making (MCDM) techniques have been extensively used in real-estate investment appraisals, there is limited evidence from the private rented sector, which constitutes a large part of the existing real estate assets. The existing approaches are not designed to capture the inherent variability of the decision environment, and they do not always achieve a consensus among the participating actors. In this work, through a rigorous literature review, we were able to identify a comprehensive list of assessment criteria, which were further validated through an iterative Delphi-based consensus-making process. The selected criteria were then used to construct an Analytical Hierarchy Process (AHP) model evaluating four real world, real estate investment alternatives from the UK private rented market. The volatility of the financial performance indicators was grasped through several Monte Carlo simulation runs. We tested the described solution approach with preference data obtained by seven senior real estate decision-makers. Our computational results suggest that financial performance is the main group of selection criteria. However, the sensitivity of the outcome indicates that location and property characteristics may greatly affect real estate investment decisions.

scholarly journals The embeddedness of sustainability in real estate investment decision-making

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Cath Jackson ◽  
Allison Orr
Keyword(s):  
Decision Making ◽  
Real Estate ◽  
Investment Decision ◽  
Qualitative Approach ◽  
Real Estate Investment ◽  
Content Type ◽  
Potential Barriers ◽  
Fund Managers ◽  
Investment Decision Making ◽  
Barriers To Implementation

Purpose The importance of real estate’s sustainability rating has increased significantly. Studies undertaken in 2007 and 2016 show that, at acquisition, the rating rose from 7th to 3rd most important attribute. This shift in priorities parallels the RICS embracing the 10 principles of the UN Global Compact (RICS, 2015). However, while sustainability value premia appear common in some international markets, the picture is mixed and drivers and mechanisms lack empirical investigation. The literature reveals potential barriers to investors fulfilling both sustainability and financial objectives. The purpose of this study is explore these potential barriers. Design/methodology/approach Focus groups with real estate fund managers, sustainability managers and acquisitions surveyors are undertaken to explore the adoption and implementation of environmental sustainability policies. This reveals a series of barriers to implementation and these are then explored in greater depth through a series of interviews with fund managers. This layered, qualitative approach is designed to provide detailed knowledge of practical and conceptual sustainability issues within the UK real estate market. Findings Key drivers underpinning the adoption of sustainability policies are revealed and barriers to implementation are found to relate to data on investment performance, valuation methodologies and prohibitive capex. Further, the heterogeneous, opaque and slow-moving nature of the market is prohibitive and intervention is encouraged to overcome the lack of financial viability that hinders improvements. Originality/value Research is dominated by highly aggregated quantitative data on sustainability within commercial real estate markets. The qualitative approach used here adds new insights and value to the understanding of the embeddedness of sustainability in real estate investment decision-making.

scholarly journals German real estate funds: changes in return distributions and portfolio favourability

2014 ◽  
Vol 7 (1) ◽  
pp. 87-111 ◽  
Author(s):  
Michael Stein
Keyword(s):  
Real Estate ◽  
Asset Allocation ◽  
Secondary Market ◽  
Real Estate Investment ◽  
Market Prices ◽  
Content Type ◽  
Savings Banks ◽  
Asset Values ◽  
Return Distributions ◽  
Clear Shift

Purpose – Since 2008, the German open-ended real estate fund (GOEREF) industry has experienced a critical phase of suspensions of redemption of fund shares, announced fund terminations and, eventually, introduction of a new regulation. With assets under the management of over 80 billion, GOEREFs are the dominant indirect real estate investment vehicle in Germany. Thus, it is extremely important to study the effects of this crisis on the risk and return characteristics of the respective funds. The paper aims to discuss these issues. Design/methodology/approach – Both net asset values (NAVs) and potential secondary market prices of the shares of funds with suspended redemptions are used. The resulting total return patterns are analysed on an index basis for fund groups that best represent the most important investor groups for GOEREFs. Findings – Groups that comprised a higher number of funds with suspended redemptions were considerably worse off and less attractive in an asset allocation context than the others given the often much lower secondary market prices. However, changes in return and risk must also be considered in terms of NAVs. The fund group comprising co-operative savings banks' funds was virtually unaffected by the liquidity crisis and continued to deliver stable and non-volatile returns, while the other fund groups exhibited a clear shift in their respective return profiles. Originality/value – This study analyses fund groups that reflect the most important investor groups by using both types of important prices in a comprehensive industry sample. It, thus, provides valuable insights into the changing profiles of the funds and groups and their favourability from an asset allocation perspective.

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