Optimal dynamic risk sharing when enforcement is a decision variable

JEL Classification: C73, D60, D91, K49dynamic risk sharing, enforcement

Measuring the Gains to Groundwater Management with Recursive Utility

Replaced with revised version of paper 07/20/05.Recursive Utility, Dynamic Games, Groundwater Policy, Resource /Energy Economics and Policy, D91, C73, Q25,

Infinite-Horizon Mechanism Design

These notes examine the problem of how to extend envelope theorems to infinite-horizon dynamic mechanism design settings, with an application to the design of "bandit auctions."asymmetric information, stochastic processes, incentives, mechanism design JEL Classification Numbers: D82, C73, L1.

A Comment on "Cycles and Instability in a Rock-Paper-Scissors Population Game: A Continuous Time Experiment"

The authors (Cason, Friedman and Hopkins, Reviews of Economics Studies, 2014) claimed a result that the treatments (using simultaneous matching in discrete time) replicate previous results that exhibit weak or no cycles. After correct two mathematical mistakes in their cycles tripwire algorithm, we research the cycles by scanning the tripwire in the full strategy space of the games and we find significant cycles missed by the authors. So we suggest that, all of the treatments (using simultaneous matching in discrete time) exhibit significant cycles.Comment: 2 pages, Keywords: experiments, cycles, mixed equilibrium, discrete time. JEL numbers: C72, C73, C92, D8

Search for the critical point of strongly interacting matter in NA49

Theoretical calculations locate the QCD critical point at energies accessible at the CERN SPS. Several observables were suggested to look for it. Here, we present the system size dependence and the energy dependence of event-by-event mean transverse momentum and multiplicity fluctuations, as well as the energy dependence of anti-baryon to baryon ratios.Comment: Quark Matter 2009 proceedings, 4 pages; Caption of Fig. 1 and one line in Fig. 6 modified (for better black and white print

Could Zc(4025)Z_{c}(4025) be a JP=1+J^{P}=1^{+} D∗D∗ˉD^{*}\bar{D^{*}} molecular state?

We investigate whether the newly observed narrow resonance $Z_{c}(4025)$ can be described as a $D^{*}\bar{D^{*}}$ molecular state with quantum numbers $J^{P}=1^{+}$. Using QCD sum rules, we consider contributions up to dimension six in the operator product expansion and work at leading order of $\alpha_{s}$. The mass obtained for this state is (4.05\pm 0.28) \mbox{GeV}. It is concluded that $D^{*}\bar{D^{*}}$ molecular state is a possible candidate for $Z_{c}(4025)$.Comment: 7 pages, 4 figures.Published in Eur.Phys.J. C73 (2013) 2661. arXiv admin note: text overlap with arXiv:1304.185

Inclusive Particle Production at LEP

New results on inclusive production of Sigma^- and Lambda(1520) and on proton production in quark and gluon jets are presented. These results are based on 2 million hadronic Z decays collected with the DELPHI detector at LEP. They are compared with the results of other LEP experiments and with models. It has been shown that the total production rates of all light-flavour hadrons measured so far at LEP 1 follow phenomenological laws related to the spin, isospin, strangeness and mass of the particles. A significant proton enhancement in gluon jets is observed, indicating that baryon production proceeds directly from colour objects.Comment: LaTeX with moriond.sty; 4 pages with 2 eps-figures. Talk given at the 35th Rencontres de Moriond on QCD and High Energy Hadronic Interactions, Les Arcs, France, March 18-25, 2000. To be published in the Proceeding

Reputation in Long-Run Relationships

We model a long-run relationship as an infinitely repeated game played by two equally patient agents. In each period, the agents play an extensive-form game of perfect information. There is incomplete information about the type of player 1 while player 2’s type is commonly known. We show that a sufficiently patient player 1 can leverage player 2’s uncertainty about his type to secure his highest payoff in any perfect Bayesian equilibrium of the repeated game.Repeated Games, Reputation, Equal Discount Factor, Long-run Players. JEL Classification Numbers: C73, D83