Narrow search
Showing 1 - 10 of 277
Cover Image
Financial price fluctuations in a stock market model with many interacting agents
Horst, Ulrich - 2001
We consider a financial market model with a large number of interacting agents. Investors are heterogeneous in their expectations about the future evolution of an asset price process. Their current expectation is based on the previous states of their "neighbors" and on a random signal about the...
Persistent link: https://www.econbiz.de/10009613599
Cover Image
Simultaneous over- and underconfidence : evidence from experimental asset markets
Maciejovsky, Boris; Kirchler, Erich - 2001
In this paper individual overconfidence within the context of an experimental asset market is investigated. Overall, 72 participants traded one risky asset on six markets of 12 participants each. The results indicate that individuals were not generally overconfident. Moreover, overconfidence was...
Persistent link: https://www.econbiz.de/10009614297
Cover Image
Ergodic fluctuations in a stock market model with interacting agents : the mean field case
Horst, Ulrich - 1999
We consider a financial market model with interacting agents and study the long run behaviour of both aggregate behaviour and equilibrium prices. Investors are heterogeneous in their price expectations and they get stochastic signals about the "mood" of the market described by the empirical...
Persistent link: https://www.econbiz.de/10009582400
Cover Image
Semiparametric modelling of the cross-section of expected returns in the German stock market
Stehle, Richard; Bunke, Olaf; Sommerfeld, Volker - 1997
According to the Sharpe-Lintner capital asset pricing model, expected rates of return on individual stocks differ only because of their different levels of non-diversifiable risk (beta). However, Fama/French (1992) show that the two variables size and book-to-market ratio capture the...
Persistent link: https://www.econbiz.de/10009661022
Cover Image
Framing effects on asset markets : an experimental analysis
Kirchler, Erich; Maciejovsky, Boris; Weber, Martin - 2001
In this paper we investigate four hypotheses which are inconsistent with expected utility theory, but may well be … explained by prospect theory. It deals with framing, the non-linearity of subjective probabilities, the disposition effect, and …) found little correspondence between different experimental risk elicitation methods. -- Prospect Theory ; Framing …
Persistent link: https://www.econbiz.de/10009613618
Cover Image
Manipulation in political stock markets : preconditions and evidence
Hansen, Jan; Schmidt, Carsten; Strobel, Martin - 2001
Political stock markets (PSM) are sometimes seen as substitutes for opinion polls. On the bases of a behavioral model, specific preconditions were drawn out under which manipulation in PSM can weaken this argument. Evidence for manipulation is reported from the data of two separate PSM during...
Persistent link: https://www.econbiz.de/10009614875
Cover Image
Weekday dependence of German stock market returns
Herwartz, Helmut - 1999
The so-called 'Monday effect ' has been found for various stock markets of the world. The empirical finding that Monday returns are significantly smaller than returns measured for the remaining days of the week calls the efficiency hypothesis for pricing processes operating on stock markets into...
Persistent link: https://www.econbiz.de/10009580468
Cover Image
Experimental "beauty contests" with homogeneous and heterogeneous players and with interior and boundary equilibria
Güth, Werner; Kocher, Martin; Sutter, Matthias - 2001
We study behavior in experimental beauty contests with, first, boundary and interior equilibria, and, second, homogeneous and heterogenous types of players. We find quicker and better convergence to the game-theoretic equilibrium with interior equilibria and homogeneous players. -- beauty...
Persistent link: https://www.econbiz.de/10009614296
Cover Image
A class of Health-Jarrow-Morton models in which the unbiased expectations hypothesis holds
Riedel, Frank - 1997
The unbiased expectations hypothesis states that forward rates are unbiased estimates for future short rates. Cox, Ingersoll and Ross [1] conjectured that this hypothesis should be inconsistent with the absence of arbitrage possibilities. Using the framework of Heath, Jarrow and Morton [4] we...
Persistent link: https://www.econbiz.de/10009632605
Cover Image
Through trial & error to collusion
Huck, Steffen; Oechssler, Joerg; Normann, Hans-Theo - 1999
In this note we study a very simple trial & error learning process in the context of a Cournot oligopoly. Without any knowledge of the payoff functions players increase, respectively decrease, their quantity by one unit as long as this leads to higher profits. We show that despite the absence of...
Persistent link: https://www.econbiz.de/10009580461