Blar i Discussion papers (FOR) på forfatter "Hens, Thorsten"
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Competitive nash equilibria and two period fund separation
Hens, Thorsten; Reimann, Stefan; Vogt, Bodo (Discussion paper, Working paper, 2003-11)We suggest a simple asset market model in which we analyze competitive and strategic behavior simultaneously. If for competitive behavior two-fund separation holds across periods then it also holds for strategic behavior. ... -
Does prospect theory explain the disposition effect?
Hens, Thorsten; Vlcek, Martin (Discussion paper, Working paper, 2005-09)The disposition effect is the observation that investors hold winning stocks too long and sell losing stocks too early. A standard explanation of the disposition effect refers to prospect theory and in particular to the ... -
Dynamic general equilibrium and t-period fund separation
Gerber, Anke; Hens, Thorsten; Wöhrmann, Peter (Discussion paper, Working paper, 2005-07)We consider a dynamic general equilibrium model with incomplete markets in which we derive conditions for separating the savings decision from the asset allocation decision. It is shown that with logarithmic utility functions ... -
Evolutionary stable investment in stock markets
Evstigneev, Igor V.; Hens, Thorsten; Schenk-Hoppé, Klaus Reiner (Discussion paper, Working paper, 2003-10)This paper studies the performance of portfolio rules in incomplete markets for long-lived assets with endogenous prices. The dynamics of wealth shares in the process of repeated reinvestment of wealth is modelled as a ... -
Existence of sunspot equilibria and uniqueness of spot market equilibria : the case of intrinsically complete markets
Hens, Thorsten; Mayer, Janós; Pilgrim, Beate (Discussion paper, Working paper, 2004)We consider economies with additively separable utility functions and give conditions for the two-agents case under which the existence of sunspot equilibria is equivalent to the occurrence of the transfer paradox. This ... -
Globally evolutionarily stable portfolio rules
Evstigneev, Igor V.; Hens, Thorsten; Schenk-Hoppé, Klaus Reiner (Discussion paper, Working paper, 2005-09)The paper examines a dynamic model of a financial market with endogenous asset prices determined by short run equilibrium of supply and demand. Assets pay dividends, that are partially consumed and partially reinvested. ... -
How time preferences differ : evidence from 45 countries
Wang, Mei; Rieger, Marc Oliver; Hens, Thorsten (Discussion paper;2011:18, Working paper, 2011-10)We present results from the first large-scale international survey on time discounting, conducted in 45 countries. Cross-country variation cannot simply be explained by economic variables such as interest rates or ... -
Limits to arbitrage when market participation is restricted
Hens, Thorsten; Herings, P. Jean -Jacques; Predtetchinskii, Arkadi (Discussion paper, Working paper, 2003-11)There is an extensive literature claiming that it is often difficult to make use of arbitrage opportunities in financial markets. This paper provides a new reason why existing arbitrage opportunities might not be seized. ... -
Making prospect theory fit for finance
De Giorgi, Enrico; Hens, Thorsten (Discussion paper, Working paper, 2005-09)This paper gives a survey over a common aspect of prospect theory that occurred to be of importance in a series of recent papers developed by Enrico De Giorgi, Thorsten Hens, Janos Mayer, Haim Levy, Thierry Post, Marc ... -
Markets do not select for a liquidity preference as behavior towards risk
Hens, Thorsten; Schenk-Hoppé, Klaus Reiner (Discussion paper, Working paper, 2003-10)Tobin (1958) has argued that in the face of potential capital losses on bonds it is reasonable to hold cash as a means to transfer wealth over time. It is shown that this assertion cannot be sustained taking into account ... -
On the micro-foundations of money : the Capitol Hill baby-sitting co-op
Hens, Thorsten; Schenk-Hoppé, Klaus Reiner; Vogt, Bodo (Discussion paper, Working paper, 2003-10)This paper contributes to the micro-foundation of money in centralized markets with idiosyncratic uncertainty. It shows existence of stationary monetary equilibria and ensures that there is an optimum quantity of money. ... -
Prospect theory and the CAPM : a contradiction or coexistence?
Levy, Haim; De Giorgi, Enrico; Hens, Thorsten (Discussion paper, Working paper, 2003-10)Under the assumption of normally distributed returns, we analyze whether the Cumulative Prospect Theory of Tversky and Kahneman (1992) is consistent with the Capital Asset Pricing Model. We find that in every financial ... -
Prospect theory and the size and value premium puzzles
De Giorgi, Enrico; Hens, Thorsten; Post, Thierry (Discussion paper, Working paper, 2005-11)Using canonical data for the US stock and bond markets, we show that the kinked piecewiseexponential value function can rationalize the cross-section of stock returns in addition to the level of the equity premium, while ... -
Prospect theory around the world
Rieger, Marc Oliver; Wang, Mei; Hens, Thorsten (Discussion paper;2011:19, Working paper, 2011-10)We present results from the first large-scale international survey on risk preferences, conducted in 45 countries. We show substantial cross-country differences in risk aversion, loss aversion and probability weighting. ... -
Rational investor sentiment
Gerber, Anke; Hens, Thorsten; Vogt, Bodo (Discussion paper, Working paper, 2002-11)We explain excess volatility, short-term momentum and long-term reversal of asset prices by a repeated game version of Keynes' beauty contest. In every period the players can either place a buy or sell order on the asset ... -
Risk aversion in the large and in the small
Haug, Jørgen; Hens, Thorsten; Wöhrmann, Peter (Discussion paper;2011:12, Working paper, 2011-06)Estimates of agents' risk aversion differ between market studies and experimental studies. We demonstrate that the estimates can be reconciled through consistent treatment of agents' tendency for narrow framing, regarding ... -
Soft landing of a stock market bubble : an experimental study
Becker, Ralf; Fischbacher, Urs; Hens, Thorsten (Discussion paper, Working paper, 2003-10)The paper investigates the effect of interest policy on price bubbles, trading behavior and portfolio choice in experimental stock markets. A series of experiments has 8 participants trade an asset over 15 periods. ... -
Sunspot equilibria and the transfer paradox
Hens, Thorsten; Pilgrim, Beate (Discussion paper, Working paper, 2004-04)We show that for international economies with two countries, in which agents have additively separable utility functions, the existence of sunspot equilibria is equivalent to the occurrence of the transfer paradox. This ... -
Two paradigms and Nobel prizes in economics : a contradiction or coexistence?
Levy, Haim; De Giorgi, Enrico; Hens, Thorsten (Discussion paper, Working paper, 2003-06)Markowitz and Sharpe won the Nobel Prize in Economics more than a decade ago for the development of Mean-Variance analysis and the Capital Asset Pricing Model (CAPM). In the year 2002, Kahneman won the Nobel Prize in ...