2022 Fiscal Year Final Research Report
House Price Analysis by Hedonic Approaches and Improving Econometric Methods
Project/Area Number |
19K01589
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 07030:Economic statistics-related
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Research Institution | University of Toyama |
Principal Investigator |
Karato Koji 富山大学, 学術研究部社会科学系, 教授 (00345555)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Keywords | オークション市場 / セレクション・バイアス / ヘドニック価格 / 落札率 |
Outline of Final Research Achievements |
Auctions are frequently used in various markets, including real estate. Since the data used in the analysis consist of products that have actually been sold, there is a sample selection bias in prices in the auction market. As an improvement of the econometric method in the hedonic approach, we proposed a price index measurement method based on the exponential type II Tobit model using auction market prices with selection bias. As a result of the analysis, it was shown that the price index by the least squares method that does not consider the selection bias has a downward bias of 4.3% compared to the price index defined using the difference in conditional expected values of logarithmic prices.
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Free Research Field |
応用計量経済学
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Academic Significance and Societal Importance of the Research Achievements |
近年,都市部やその郊外を中心にして,過去の高度経済成長期以降(1960-80年代)に建てられたマンションや戸建て住宅の老朽化がはじまっている。また,市場で売買できなくなってしまった空き家不動産も確実に増大しており,今後その膨大な資産を活かすための制度・政策の策定が求められる。住宅や土地などの不動産は国民資産の多くを占め,その価値の適切な評価は市場取引や課税などにおいてきわめて重要である。そのため,価格指数や経年が住宅価格に与える効果を適切に測るための手法が必要である。本研究は,価格指数の計測方法に関して新しい手法を提案しており,国が持つ膨大な資産の有効利用の一助になると考えられる。
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