 Real Estate Portfolio Ratings and Market DataCarsten Lausberg and Andreas Wiegner ERES from European Real Estate Society (ERES) Abstract: In recent years the quality of instruments for real estate risk management has greatly improved. External and internal ratings are in the center of this development, but compared to borrower ratings the stage of development is still rather low. In this paper we use a large sample of properties from German open-ended funds to demonstrate which methods are suitable for an external real estate rating. In the first part we place special emphasis on the market data, analyzing which data are available globally, checking their suitability for real estate ratings, and delineating the difficulties of the collection procedure. In the second part the article describes in detail how the market data is used in various kinds of ratingsó quantitative models based on cash flow simulation, qualitative models based on scorings, and mixed-form ratings. We show that a rating of real estate portfolios can greatly benefit from the advances that banks made in their internal ratings-based approaches following the New Basel Capital Accord. But due to several constraints, mainly in the market data, we come to the conclusion that quantitative methods alone are not sufficient (yet) for a holistic view on the risks of a real estate portfolio. JEL-codes: R3 (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:arz:wpaper:eres2009_250 Access Statistics for this paper More papers in ERES from European Real Estate Society (ERES) Contact information at EDIRC. |
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