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Using an agent-based model (ABM) with fundamentalists and chartists, prone to develop bubbles and crashes, we demonstrate the usefulness of direct market intervention by a policy maker, documenting strong performance in preventing bubbles and drawdowns and augmenting significantly the welfare of...
Persistent link: https://www.econbiz.de/10012271219
We present an agent-based model (ABM) of a financial market with n 1 risky assets, whose price dynamics result from the interaction between rational fundamentalists and trend following imitative noise traders. The interactions and opinion formation of the noise traders are described by an...
Persistent link: https://www.econbiz.de/10012799633
In this paper, we develop and examine a simple interactive agent‐based model, where the distribution of returns generated from the model takes into account two stylized facts about financial markets: fat tails and volatility clustering. Our results indicate that the risk tolerance of...
Persistent link: https://www.econbiz.de/10011886606
We introduce human traders into an agent based financial market simulation prone to bubbles and crashes. We find that human traders earn lower profits overall than do the simulated agents ("robots") but earn higher profits in the most crash-intensive periods. Inexperienced human traders tend to...
Persistent link: https://www.econbiz.de/10003782440
Interconnectedness among insurers and reinsurers at a global level is not well understood and may pose a significant risk to the sector, with implications for the macroeconomy. Models of the complex interactions among reinsurers and with other participants in the financial system and the real...
Persistent link: https://www.econbiz.de/10011521658
We review heterogeneous agent-based models of financial stability and their application in stress tests. In contrast to the mainstream approach, which relies heavily on the rational expectations assumption and focuses on situations where it is possible to compute an equilibrium, this approach...
Persistent link: https://www.econbiz.de/10011906282
We introduce a methodology from geophysics, Singular Spectrum Analysis (SSA), to obtain stable, noise-cleaned correlations for long term risk (e.g. counterparty risk). SSA is applied to time series to smooth them in a robust manner. The SSA-smoothed time series are then used to obtain the...
Persistent link: https://www.econbiz.de/10012987091
By means of Self-Organizing Maps we cluster fourteen European countries according to the most suitable way to model their agents' expectations. Using the financial crisis of 2008 as a benchmark, we distinguish between those countries that show a progressive anticipation of the crisis and those...
Persistent link: https://www.econbiz.de/10012959528
In this paper, we review econometric methodology that is used to test for jumps and to decompose realized volatility into continuous and jump components. In order to illustrate how to implement the methods discussed, we also present the results of an empirical analysis in which we separate...
Persistent link: https://www.econbiz.de/10012915430
The study of stock market efficiency has been the objective of many researches across the globe since the last few decades. But the evidence is mixed on whether the stock market is efficient. While some studies conclude that the stock markets are efficient, other studies cast doubt on this...
Persistent link: https://www.econbiz.de/10013116490