The development of real estate prices is of extraordinary importance for the financial and economic system, as undesirable developments could endanger financial stability, as seen in the subprime crisis, which eventually evolved into a global financial crisis. The same month the dot-com bubble burst, the Nobel Prize winner and current book author Robert J. Shiller published the non-fictional, bestselling first edition of his book, named "Irrational Exuberance", in which he explains his research on the occurrences and the causes of historical financial crises, while supplementing the conclusions with aspects of behavioural finance and social studies. As Shiller’s assertions are mainly based on the US market, research has been conducted to clarify whether his housing index and the concept of irrational exuberance can be applied to the German real estate market. By the detailed consideration of selected aspects of the book in connection with the conception of academic literature, this thesis finds that his ideas can principally be transferred to assess whether the German real estate market currently exhibits bubbly tendencies. This assessment is conducted, however, there are limitations in the sole consideration as an indicator as well as in the critical evaluation of the German real estate market.
Table of Contents
1 Introduction
1.1 Research problem
1.2 Course of investigation
2 German real estate market
2.1 Structure of the market
2.2 Real estate financing
2.3 Causes of the development of supply
2.4 Causes of the development of demand
3 Irrational Exuberance by Robert J. Shiller
3.1 About the author and his work
3.2 Speculative bubbles
3.3 Drivers of irrational exuberance
4 Discussion of the Case Shiller home price index
4.1 History of the development
4.2 The Case Shiller home price index
5 Application to the German real estate market
5.1 Applicability of the index and the concept of irrational exuberance
5.2 Irrational exuberance in Germany
5.3 Implications for the German real estate market
6 Conclusion
6.1 Summary
6.2 Critical acclaim
6.3 Outlook
Research Objectives and Key Topics
The primary aim of this thesis is to critically evaluate whether the current price development in the German real estate market exhibits characteristics of a speculative bubble. By applying Robert J. Shiller's concept of "irrational exuberance" and utilizing the Case Shiller home price index (CS HPI) as an analytical indicator, the research investigates whether findings from the US market regarding speculative dynamics can be meaningfully transferred to the German context, while accounting for structural market differences.
- Structural characteristics and financing mechanisms of the German real estate market.
- Deep analysis of the concept of "irrational exuberance" and its psychological drivers in financial markets.
- Methodological discussion and historical context of the Case Shiller home price index.
- Application of international real estate bubble indicators to identify potential market overheating in Germany.
- Evaluation of the role of interest rates and media influence on investor sentiment and asset valuations.
Excerpt from the Book
3.2 Speculative bubbles
According to Shiller (2015, p. 2) irrational exuberance is the psychological basis of a speculative bubble. In 1996 Alan Greenspan, then Chair of the Federal Reserve Board, used the term irrational exuberance to describe the behaviour of market participants (Shiller, 2015, p. 1). His intention was to point out what he considered to be an overvaluation on the stock markets and the associated danger of a crash (Rombach, 2011, p. 39). Since then the words “irrational exuberance” are still referred to until today (Shiller, 2015, p. 1). Shiller describes irrational exuberance as a kind of bad judgment everybody has made at some point in their lives when their enthusiasm got the best of them (Shiller, 2015, p. 2). There has been substantial debate about the use and meaning of the term "bubble" in academic economics and finance (Quinn & Turner, 2020, p. 3). According to Brunnermeier (2017, p. 28) speculative bubbles form when the price of an asset exceeds its intrinsic value. He further states that if investors hold an asset only because they feel they can sell it for a higher price than another investor, despite the fact that the asset's price is higher than its underlying value, they support the dynamics of irrational exuberance (ibid.). The underlying value of an asset is the value derived from the asset's usefulness, as reflected by the price level in equilibrium (Dec et al., 2022, p. 293). However a deviation is possible as housing fulfils basic needs and some buyers may be willing to pay a higher price for a property than is fundamentally justified, because they fear they would not be able to buy it in the future due to further price increases (Joebges et al., 2015, p. 10).
Summary of Chapters
1 Introduction: Provides the research problem regarding real estate price bubbles and outlines the study's roadmap and methodological approach.
2 German real estate market: Describes the structural peculiarities, financing, and supply/demand drivers unique to the German housing sector.
3 Irrational Exuberance by Robert J. Shiller: detailed examination of Shiller’s academic work, defining speculative bubbles and identifying psychological and media-driven catalysts.
4 Discussion of the Case Shiller home price index: Reviews the history, development, and mechanics of the CS HPI as a tool for tracking market efficiency.
5 Application to the German real estate market: Analyzes the transferability of the CS HPI and irrational exuberance concepts to the German market, evaluating current inflationary trends.
6 Conclusion: Synthesizes findings on market overvaluation, acknowledges methodological limitations, and provides an outlook on future price stability.
Keywords
asset bubble, housing bubble, robert shiller, irrational exuberance, real estate market, behavioural finance, housing development Germany, monetary policy, home price index, financial stability, speculative dynamics, market efficiency, overvaluation, interest rates
Frequently Asked Questions
What is the core subject of this thesis?
This thesis examines the risk of speculative housing price bubbles in the German real estate market, utilizing Robert J. Shiller’s framework of "irrational exuberance" to analyze current trends.
What are the primary thematic areas covered?
The work covers structural market analysis, the psychological foundations of financial speculation, the history and utility of the Case Shiller home price index, and the impact of macroeconomic factors like monetary policy on property prices.
What is the main research objective?
The goal is to determine if the German residential real estate market exhibits bubble-like characteristics by assessing its price development against concepts of "irrational exuberance" and established valuation indices.
Which scientific methodology is applied?
The thesis utilizes a literature-based conceptual analysis, combining economic data from the German market with Shiller’s theoretical and qualitative frameworks on speculative market behaviors.
What topics are discussed in the main chapters?
The chapters address market structure, the psychological drivers and amplifiers of speculative bubbles (such as media influence and herd behavior), the mechanics of price indices, and the specific application of these theories to the German metropolitan landscape.
Which keywords best describe this research?
The research is best characterized by terms such as irrational exuberance, real estate market, behavioural finance, asset bubble, and market efficiency.
How does the author evaluate the transferability of the US-developed index to Germany?
The author argues that despite structural differences—such as homeownership rates—global metropolitan centers share similar speculative tendencies, making the index a valid indicator for evaluating international real estate market dynamics.
What role does the media play in the author's analysis of bubbles?
The author identifies the media as a crucial amplifier for "attention cascades," where sensationalist reporting fuels narratives that can lead investors to disregard market fundamentals, thereby intensifying speculative behavior.
- Quote paper
- Luca Dominikat (Author), 2022, Real Estate Price Bubbles as Irrational Exuberance. A Critical Analysis of the German Real Estate Market, Munich, GRIN Verlag, https://www.grin.com/document/1356000
