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Categorical Variable Problem In Real Estate Submarket Determination With Gwr Model 用Gwr模型确定房地产子市场的分类变量问题
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-12-01 DOI: 10.2478/remav-2022-0028
S. Gnat
Abstract Real estate market analysis can involve many aspects. One of them is the study of the influence of various factors on prices and property values. For this type of issues, different kinds of measures and statistical models are often used. Many of them do not give unambiguous results. One of the reasons for this is the fact that the real estate market is characterized by the concept of local markets, which may be affected in different ways by economic, social, technical, environmental and other factors. Incorporating the influence of local markets, otherwise known as submarkets, into models often helps improve the precision of mass real estate valuation results. The delineation of submarket boundaries can be done in several different ways. One tool that is helpful in these types of situations are geographically weighted regression (GWR) models. The problem that may arise when using such models is related to the nature of some market factors, which may be of a qualitative nature. Because neighborhoods of individual properties may lack variability in terms of some variables, estimating GWR models is significantly difficult or impossible. The study will present an approach in which the categorical variables are transformed into a single synthetic variable, and only this variable will constitute the explanatory variable in the model. Areas where the slope parameters of the GWR model are similar were considered a submarket. The purpose of this paper is to determine the boundaries of submarkets in the study area and to compare the results of modeling the value of real estate using models that do not take local markets into account, as well as those that take into account local markets determined by experts and using the GWR model.
房地产市场分析可以涉及很多方面。其中之一是研究各种因素对价格和财产价值的影响。对于这类问题,通常使用不同类型的度量和统计模型。他们中的许多人并没有给出明确的结果。其中一个原因是房地产市场具有本地市场概念的特点,可能会受到经济、社会、技术、环境等因素的不同影响。将本地市场(也称为次级市场)的影响纳入模型,往往有助于提高大规模房地产估值结果的准确性。划分次级市场的边界可以用几种不同的方法来完成。在这种情况下,一个有用的工具是地理加权回归(GWR)模型。使用这种模型时可能出现的问题与某些市场因素的性质有关,这些因素可能是定性的。由于个别属性的邻域在某些变量方面可能缺乏可变性,因此估计GWR模型非常困难或不可能。本研究将提出一种将分类变量转化为单一合成变量的方法,只有该变量才构成模型中的解释变量。GWR模型的斜率参数相似的地区被认为是一个次级市场。本文的目的是确定研究区域内子市场的边界,并比较使用不考虑当地市场的模型和使用GWR模型考虑专家确定的当地市场的模型对房地产价值建模的结果。
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引用次数: 0
Reflecting Sustainability in the Analysis of Highest and Best Use: Evidence from Polish Municipalities 在最高和最佳利用分析中反映可持续性:来自波兰市政当局的证据
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-12-01 DOI: 10.2478/remav-2022-0032
Małgorzata Rymarzak, E. Siemińska, Krzysztof Sakierski
Abstract The combination of policy concerns over climate and demographic change, energy shortages, resource efficiency and the natural environment, has led municipalities to be expected to reflect sustainability in different actions, including the decision-making on a considerable amount of their real property assets. As more and more municipalities, use the highest and best use analysis for reviewing the configuration of real property asset portfolio to achieve public goals, this provokes an examination of the reflection of sustainability (environmental, economic and social dimensions) in this kind of elaboration. Thus, this paper aims to investigate how Polish municipalities deal with the incorporation of sustainability into the highest and best use analysis and its operationalization in four tests (legally permissible, physically possible, financially feasible, and maximally productive). The research goal was pursued based on quantitative research using surveys conducted between April and May 2022 among eleven municipalities (creating the largest metropolitan areas in Poland) and qualitative research by the content analysis of HBU analyses prepared for them in previous years.
摘要对气候和人口变化、能源短缺、资源效率和自然环境的政策关切相结合,促使市政当局在不同的行动中反映可持续性,包括对其大量不动产资产的决策。随着越来越多的市政当局使用最高和最佳用途分析来审查房地产资产组合的配置,以实现公共目标,这引发了对可持续性(环境、经济和社会层面)在这种阐述中的反映的审查。因此,本文旨在调查波兰市政当局如何将可持续性纳入最高和最佳利用分析,并在四个测试中进行操作(法律允许、物理可能、财务可行和生产效率最高)。该研究目标是基于2022年4月至5月在11个市镇(创建了波兰最大的大都市地区)进行的定量研究和通过前几年为其准备的HBU分析内容分析进行的定性研究来实现的。
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引用次数: 0
Dependence of Housing Real Estate Prices on Inflation as One of the Most Important Factors: Poland’s Case 住房房地产价格对通货膨胀的依赖是最重要的因素之一:波兰的案例
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-12-01 DOI: 10.2478/remav-2022-0027
O. Melnychenko, T. Osadcha, A. Kovalyov, V. Matskul
Abstract The study aimed to examine the impact of inflation on the real estate market using Polish panel data for the last 13 years. It is based on a panel model, where price changes of one square meter of housing are determined as a function in changes of inflation, the central bank’s base rate, dwellings built, as well as new mortgage loans. The quarterly dynamics of the average price of 1 square meter of housing in Poland’s eight largest cities in the 2009-2021 period was studied. This price was modeled and predicted using one of the Box-Jenkins time series models: the Holt-Winter model of exponential smoothing with a damped trend. The forecasting results showed a small (up to 4%) relative error in comparison with the actual data. In addition, the moment (2017) of the price trend change was found. Therefore, piecewise linear regressions with high regression coefficients were used when modeling the impact of inflation changes on the real estate market indicators under consideration. The results obtained provide valuable insight into the relationship of real estate market indicators, allowing consumers to predict available options and make decisions in accordance with their preferences.
摘要本研究旨在利用波兰过去13年的面板数据检验通货膨胀对房地产市场的影响。它基于面板模型,将每平方米住房的价格变化确定为通货膨胀、央行基准利率、住房建设以及新增抵押贷款变化的函数。研究了2009-2021年期间波兰8个最大城市1平方米住房平均价格的季度动态。这个价格是用一种Box-Jenkins时间序列模型建模和预测的:霍尔特-温特指数平滑模型。与实际数据相比,预测结果显示出较小(高达4%)的相对误差。此外,还发现了价格趋势变化的时刻(2017年)。因此,在对通货膨胀变化对所考虑的房地产市场指标的影响进行建模时,采用了高回归系数的分段线性回归。所获得的结果为房地产市场指标之间的关系提供了有价值的见解,使消费者能够预测可用的选项并根据自己的偏好做出决策。
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引用次数: 1
Comparative Analysis: Influence of Interest Rates on Returns of Real Estate Private Equity Index and Real Estate Public Equity Index 比较分析:利率对房地产私募股权指数和房地产公募股权指数收益的影响
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-12-01 DOI: 10.2478/remav-2022-0026
M. Sharma
Abstract In this paper, we studied the influence of interest rates on a US-based real estate private equity index as well US Wilshire public equity REIT Index. The interest rates that are chosen as independent variables include Monthly LIBOR, Yearly LIBOR and the Federal Cost of Funds Index. The dependent variables include US-based real estate private equity index that includes quarterly returns of 1,035 real estate funds, including liquidated funds formed between 1986 and 2018. The other dependent variable is the US Wilshire REIT Index. The variance of returns of interest rates considerably influences the variance of returns of the US PERE Index, whereas variance of returns of interest rates doesn’t influence the variance of returns of the US Wilshire REIT Index. Also, the real estate index is positively correlated to interest rates and so rising interest rates influence the returns of US PERE Index in a positive manner. The study shows that private equity real estate investors should expect higher return as the cost of funds increase.
摘要本文研究了利率对美国房地产私募股权指数和美国Wilshire公共股权REIT指数的影响。被选为自变量的利率包括月度LIBOR、年度LIBOR和联邦资金成本指数。因变量包括美国房地产私募股权指数,该指数包括1035只房地产基金的季度回报,其中包括1986年至2018年间成立的清算基金。另一个因变量是美国威尔希尔房地产投资信托基金指数。利率收益率的方差显著影响美国PERE指数的收益率方差,而利率收益率的方差不影响美国Wilshire REIT指数的收益率方差。此外,房地产指数与利率正相关,因此利率的上升对US PERE指数的收益产生了积极的影响。研究表明,随着资金成本的增加,私募股权房地产投资者应该期待更高的回报。
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引用次数: 0
Real Estate Market Price Prediction Model of Istanbul 伊斯坦布尔房地产市场价格预测模型
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-12-01 DOI: 10.2478/remav-2022-0025
Mert Tekin, I. Sari
Abstract The Turkish Housing Market has experienced a steep increase in prices. Individual and corporate investors now possess tools to estimate the real estate evaluation while using smaller amounts of data with traditional techniques. Not having an analytical approach to evaluate the price of real estate could cause the investor to lose considerable amounts of money, especially in the case of individual investors. This study aims to determine how different machine learning algorithms with real market data can improve this process. To be able to test this, over 30000 lines of housing market data with over 13 variables is scraped. Data is cleansed, manipulated and visualized, while predictive models such as linear regression, polynomial regression, decision trees, random forests, and XGboost are created and compared according to the CRISP-DM framework. The results show that using complex techniques to create machine learning models could improve the accuracy in predicting the listing prices of houses. This paper aims to: – analyze the effects of using a real and relatively large amount of data, – determine the main variables that contribute to the evaluation of an estate, – compare different machine learning models to find the optimal one for the real estate market, – create an accurate model to predict the value of any house on the Istanbul market.
摘要土耳其住房市场经历了价格的急剧上涨。个人和企业投资者现在拥有评估房地产评估的工具,同时使用传统技术使用少量数据。没有分析方法来评估房地产价格可能会导致投资者损失大量资金,尤其是在个人投资者的情况下。本研究旨在确定具有真实市场数据的不同机器学习算法如何改进这一过程。为了能够测试这一点,我们收集了超过30000行包含13个变量的住房市场数据。数据被净化、处理和可视化,同时根据CRISP-DM框架创建和比较预测模型,如线性回归、多项式回归、决策树、随机森林和XGboost。结果表明,使用复杂的技术创建机器学习模型可以提高预测房屋挂牌价格的准确性。本文旨在:分析使用真实且相对大量的数据的影响,确定有助于评估房地产的主要变量,比较不同的机器学习模型以找到适合房地产市场的最佳模型,创建一个准确的模型来预测伊斯坦布尔市场上任何房屋的价值。
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引用次数: 1
Analysis of the Relationship Between COVID-19 Infections and Web-Based Housing Searches COVID-19感染与网络住房搜索的关系分析
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-12-01 DOI: 10.2478/remav-2022-0031
M. Bełej
Abstract The study used Google search query data on real estate interest for several countries in the Baltic area. The dynamics of public interest in housing have been compared to the dynamics of the COVID-19 infections in Lithuania, Latvia, Poland, and Sweden. This study uses the Vector autoregressive (VAR) model to forecast such time series. VAR is a multivariate linear time series model in which the endogenous variables in the system are lagged functions of the values of all endogenous variables. The increase in COVID-19 infections negatively affected society’s interest in housing. The study used Google Trends and R software.
本研究使用谷歌搜索查询波罗的海地区几个国家的房地产兴趣数据。将公众对住房兴趣的动态与立陶宛、拉脱维亚、波兰和瑞典的COVID-19感染动态进行了比较。本研究采用向量自回归(VAR)模型对这类时间序列进行预测。VAR是一种多元线性时间序列模型,其中系统中的内生变量是所有内生变量值的滞后函数。COVID-19感染人数的增加对社会对住房的兴趣产生了负面影响。这项研究使用了谷歌Trends和R软件。
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引用次数: 0
Econometric Models of Real Estate Prices with Prior Information. Mixed Estimation 具有先验信息的房地产价格计量经济学模型。混合估计
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-09-01 DOI: 10.2478/remav-2022-0021
M. Doszyń
Abstract The purpose of this paper is to estimate econometric models with sample and prior information. Prices of land property for residential development in Szczecin are modeled (the price level was determined for 2018). Modeling property prices only based on sample data generates numerous problems. Transaction databases from local real estate markets often contain a small number of observations. Properties are frequently similar, which results in low variability of property characteristics, and thus – low efficiency of parameter estimators. In such a situation, the impact of some features cannot be estimated from the sample data. As a solution to this problem, the paper proposes econometric models that consider prior information. This information can be, for example, in the form of property feature weights proposed by experts. The prior information will be expressed in the form of stochastic restrictions imposed on the model parameters. In the simulation experiment, the predictive power of mixed estimation models is compared with two kind of models: OLS models and model with only prior information. It turned out that mixed estimation results are superior with regard to formal criteria and predictive abilities.
摘要本文的目的是利用样本和先验信息来估计计量经济模型。对什切青住宅开发用地的价格进行了建模(价格水平为2018年确定)。仅根据样本数据对房地产价格进行建模会产生许多问题。来自当地房地产市场的交易数据库通常包含少量观察结果。性质经常相似,这导致性质特征的可变性低,从而导致参数估计的效率低。在这种情况下,无法从样本数据中估计某些特征的影响。为了解决这个问题,本文提出了考虑先验信息的计量经济模型。例如,该信息可以是专家提出的特性特征权重的形式。先验信息将以施加在模型参数上的随机限制的形式表示。在仿真实验中,将混合估计模型的预测能力与两种模型进行了比较:OLS模型和只有先验信息的模型。结果表明,混合估计结果在形式化标准和预测能力方面是优越的。
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引用次数: 1
Asset Pricing Puzzle: New Evidence of Fama-French Five-Factors in Emerging Market Perspectives 资产定价之谜:新兴市场视角下法玛-法伦奇五因素的新证据
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-09-01 DOI: 10.2478/remav-2022-0022
M. Hossain
Abstract The asset pricing theory introduced by Fama and French (2015) documents five systematic common risk factors for equity valuation, such as: (a) market beta, (b) firm size, (c) firm value, (d) profitability and (e) investment strategy. However, corporate finance literature does not provide us with a particularly robust check if the FF5 model is equally exposed to estimate equity returns in an emerging market. Hence, based on Fama and Macbeth (1973) as well as Fama and French (1993, 2015, 2020), this paper applies multivariate regression (time series & cross-sectional) analysis for the robust test of common risk factors and risk premia respectively in an emerging market context, and finally validates that all of the systematic risk factors are significant except firm profitability and investment strategy. We found that the distinguishing semi-strong level of market efficiency influences the explanatory power of the underlying risk exposure for stock return performance differently in an emerging market. The finding could be important in estimating equity fair pricing that is yet to be examined for an emerging market. Therefore, with the reconfirmedthree significant common risk factors, the market practitioners, policy makers, financial analysts, and, above all, investors can estimate equity value appropriately, and thereby take optimal financial and investment decisions.
Fama和French(2015)提出的资产定价理论记录了股票估值的五个系统性常见风险因素,如:(a)市场贝塔系数,(b)公司规模,(c)公司价值,(d)盈利能力和(e)投资策略。然而,企业金融文献并没有为我们提供一个特别强大的检查,如果FF5模型同样暴露于新兴市场的估计股权回报。因此,本文基于Fama and Macbeth(1973)以及Fama and French(1993, 2015, 2020),分别运用多元回归(时间序列&横截面)分析对新兴市场背景下的常见风险因素和风险收益进行稳健性检验,最终验证了除企业盈利能力和投资策略外,所有系统性风险因素均显著。我们发现,在新兴市场中,显著的半强市场效率水平对潜在风险敞口对股票收益表现的解释能力有不同的影响。这一发现可能对估计新兴市场的股票公平定价具有重要意义。因此,通过重新确认三个重要的共同风险因素,市场从业者、政策制定者、金融分析师,尤其是投资者可以适当地估计股权价值,从而做出最优的财务和投资决策。
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引用次数: 0
Determinants of Housing Construction in Ukraine 乌克兰住房建设的决定因素
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-09-01 DOI: 10.2478/remav-2022-0017
О. Bochko, N. Kosar, N. Kuzo, I. Bilyk, O. Zarichna
Abstract The work presents an analysis of the housing construction market in Ukraine. An economic and mathematic model was built to determine that the growth of the volume of housing construction in Ukraine had a positive impact on its GDP, due of a close relation between the two values. It is important to identify factors influencing the volume of housing construction. The obtained results prove that the greatest impact is made by consumer income, deposit rates in foreign currency, and the amount of consumer loans for buying, building and reconstruction of real estate assets; the numbers of marriages, investments in housing construction and interest rates for mortgage credits in UAH also have a significant impact. The elasticity coefficients reveal a positive impact of such factors as an increase of consumer income, growth of investments in housing construction, reduction of interest rates for mortgage credits and deposit rates in foreign currency, reduction of the amount of consumer loans for buying, building and reconstruction of real estate assets, and reduction of the number of marriages. Further development of the housing construction market requires appropriate conditions for the development of the banking sector in Ukraine and the growth of investments in the studied industry.
摘要本文分析了乌克兰的住房建设市场。建立了一个经济和数学模型,以确定乌克兰住房建设量的增长对其GDP产生了积极影响,因为这两个值之间有着密切的关系。确定影响住房建设量的因素很重要。研究结果表明,影响最大的是消费者收入、外币存款利率以及用于购买、建造和重建房地产资产的消费贷款金额;UAH的婚姻数量、住房建设投资和抵押贷款利率也有重大影响。弹性系数揭示了消费者收入的增加、住房建设投资的增长、抵押贷款利率和外币存款利率的降低、用于购买、建造和重建房地产资产的消费贷款金额的减少以及婚姻数量的减少等因素的积极影响。住房建设市场的进一步发展需要为乌克兰银行业的发展和所研究行业投资的增长提供适当的条件。
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引用次数: 1
Identification of Regularities in Relation Between Prices on Primary and Secondary Housing Market in Selected Cities in Poland 波兰选定城市一、二次住房市场价格关系的规律识别
IF 0.8 Q4 BUSINESS, FINANCE Pub Date : 2022-09-01 DOI: 10.2478/remav-2022-0020
S. Kokot
Abstract The purpose of this study is to identify regularities in the price relations between primary and secondary housing markets. The primary market and the secondary market are two related but quite differentiated sub-segments of the residential market. They particularly differ in the qualitative features of their traded objects and, consequently, also in the prices recorded in their trading. Nevertheless, they remain under the influence of the same main factors of a macroeconomic nature. This gives rise to the research hypothesis that prices of flats quoted in the sub-segments of the residential market remain in specific relationships with one another. In an attempt to verify this hypothesis, the paper presents the results of an analytical work on the search for regularities in the relationship between prices on primary and secondary housing markets in selected Polish cities. The regularities concern the dynamics and structure of price relation indices constructed for the research. They also include classification analyses. The findings of the research have revealed, inter alia, that in the majority of the cities under study, prices of flats in the primary markets are higher than prices in the secondary markets. However, situations in which the reverse happens periodically (sometimes occasionally) are not rare. The examined relations are not permanent and are subject to relatively large, irregular fluctuations over time. It is possible to distinguish groups of cities which are relatively similar in this respect, but these similarities are not strong.
摘要本研究的目的是确定一级和二级住房市场之间价格关系的规律。一级市场和二级市场是住宅市场的两个相关但差异很大的细分市场。它们在交易对象的质量特征上尤其不同,因此在交易中记录的价格上也不同。然而,它们仍然受到宏观经济性质的同样主要因素的影响。这就产生了一种研究假设,即住宅市场各细分市场的公寓价格之间仍然存在特定的关系。为了验证这一假设,本文介绍了一项分析工作的结果,该工作旨在寻找波兰选定城市一级和二级住房市场价格之间关系的规律。规律涉及为研究构建的价格关系指数的动态和结构。它们还包括分类分析。研究结果显示,在所研究的大多数城市中,一级市场的公寓价格高于二级市场的价格。然而,周期性(有时偶尔)发生相反情况的情况并不罕见。所审查的关系不是永久性的,随着时间的推移会出现相对较大的、不规则的波动。可以区分在这方面相对相似的城市群,但这些相似性并不强。
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引用次数: 3
期刊
Real Estate Management and Valuation
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