Study On Real Estate Portfolio Optimization And Investment Decision

The real estate industry has the high added value, the real estate investment can bring the rich profits, but needs the large amount of investmenting , moreover the long investment recoupment period, the large risk.Therefore, before carring on the real estate investment, should consider the situation all-sidely, observe the times and judge the occasion to carries on investment decision analysis.At present, regarding the real estate investment strategic decision method, like net cash value method, the investment recycling expectation method and risk decision-making and the non-definite strategic decision method which are the commonly used, although all is weighed the advantages and disadvantages carries on the appraisal, the essential element is very strong, its result is often accompanied by the subjectivity, moreover it lacks the system analysis and the quantitative investigation, all is the simple target strategic decision.According to the grey system theory, the real estate investment strategic decision question is a gray system, in this system both has the white information which understood, and also has the black information which is not discovered yet, but most of all is the general understanding ambiguous informations.Among the real estate investment strategic decision various factors target are not independent, but an ambiguous relations.Therefore, when carring on the real estate investment, you must consider many targets, must carry on the multi-objective decision making.This article proceed from the system viewpoint, uses the group analytic hierarchy method, has established the level quality synthetic evaluation system.And applies the grey connective analysis and the collective value statistical method, advance a new theory based on ambiguous analytic hierarchy real estate investment strategic decision method.This article use the analytic hierarchy process and grey correlation theory, put forward a comprehensive evaluation based on Gray's real estate investment decision. Both taking the advantage of the limited information is real world scenario to establish the reference sequence, and solved by decision makers personal knowledge, experience and preferences of the restrictive and other decision-making environment, the impact of the restriction. At the same time, in absorbted norms'quantification processing, statistical analysis of the introduction of a set-valued, therefore reducing the real estate assessment of uncertainties in the process. The method real estate investment decision schemes'selection provides you with a new effective way, in the actual real estate investment decision scheme selection process, the variety of the actual situation on the timely update timeliness ,on the selection process for dynamic control. In addition, the paper also in real estate portfolio optimization has been studied, and to the introduction of multi-dimensional functions connected to a real estate portfolio optimization the process.