A Mass Appraisal Model Based on Market Segment Parameters

Abstract

Abstract:The proposed evaluation scheme is a uni-equation model to evaluate properties of Mass Appraisal (MA) in terms of widespread availability of sample data. It all allows the use of statistical models and in the opposite conditions of the absence of data of comparable properties, the functions of similar market areas are known as well as the ones near to those for which you want to estimate the function. Of course, the accuracy of the evaluation increases with the amount of available data, with other equal conditions and evaluations carried out without data (but in the presence of other market information). It requires extra-statistical appraisal procedures involving a complete knowledge of the real estate market. However, such knowledge is also required in the MA performed by quantitative models with regard to the data sampling and performance monitoring process. The model considers micro-level characteristics of the properties and macro-level parameters of the real estate market segments. The appraisal model defines the prediction function with both the statistical models and estimation procedures. For this purpose, the model considers four specific situations: the construction of a statistical model operating with a sufficiently large sample of market prices; the construction of a prediction function operating with a very few number of market prices samples; in this situation, the appraisal function of market value is defined by using a sample of market prices referred to comparable properties, and these are few for statistical use but perfectly suitable to the appraisal process; the construction of a prediction function operating with only one market price; the construction of a prediction function operating in the absence of real estate data but with similar functions of market areas with other estimated proprieties. The presented model provides a uniform method of estimating the market value of properties (and fees), through the modular functions. The model studied is able to operate also with reduced information, considering the practical circumstances, the boundary conditions, the application precautions and the significance of the results.

Estimating Residential Property Values on the Basis of Clustering and Geostatistics

“…There are many ways of applying statistical methods and creating multidimensional mathematical models to describe a given property market [3][4][5][6][7]. The most frequently used model is the hedonic one, which uses multiple regression [8] and the ordinary least square method (OLS).…”

Mass Appraisal Models of Real Estate in the 21st Century: A Systematic Literature Review

“…Generally, researchers apply the ideas, models and methods of other fields, such as statistics, computer science or geographic science, to the field of real estate mass appraisal. Some scholars have made beneficial attempts to summarize the models from different perspectives, such as academic discipline [7], prediction accuracy [8], computational intelligence [9][10][11], taxation purpose [12][13][14], mortgage purpose [15] and automated valuation application in relevant countries and regions [6,[16][17][18][19][20]. Through the classification of various models, a 3I-trend is summarized, namely AI-Based Model, GIS-Based model and MIX-Based Model.…”

Real Estate Appraisals with Bayesian Approach and Markov Chain Hybrid Monte Carlo Method: An Application to a Central Urban Area of Naples

“…As detailed above, also considering the opacity of Italian real estate markets conditions [68,69], the small real estate sample used in this work should not prejudice the operational usability of statistical techniques.…”