The quality of various Hawkes-process-based order book models are assessed using some objectivecriteria. We start with a precise empirical analysis of the dependenciesbetween order arrivals of various types, then, models built from multivariate, possibly nonlinear,Hawkes processes with multiple exponential kernels are introduced. Models areevaluate...
We investigate whether peer effects at work differ by gender and whether the gender differencein peer effects –if any- depends on work organization, precisely the structure of social networks.We develop a social network model with gender heterogeneity that we test by means of a realeffortlaboratory experiment. We compare sequential networks in whic...
The paper inquires into the impact of mistakes of identity (ID errors) on the optimalstandard of proof. A mistake of identity is defined as an error such that an individualis punished for someone else’s crime; and for the same crime, the criminal is falselyacquitted. Therefore, the decision to engage in a criminal activity generates a negativeexter...
This paper considers the effects that the opportunity to change partners has on communication. Our experiment concerns a standard cheap talk game in which a player observes a private forecast before disclosing it (truthfully or untruthfully) in a message that he sends to his partner. Two treatments are applied: in one, each team remains unchanged u...
We investigate the potential impact of various proposed reforms intended to improvethe quality of expert testimony while reducing its cost, and to facilitate the work ofjudges in appointing experts and reading their reports. To do so, we present a unilateralcare model under strict liability in which the court cannot perfectly observe theamount of h...
Cournot model of oligopoly appears as a central model of strategic interactionbetween competing firms both from a theoretical and applied perspective(e.g antitrust). As such it is an essential tool in the economics toolboxand always a stimulus. Although there is a huge and deep literature on it andas far as we know, we think that there is a ”mouse ...
A variant of the h-index introduced in García-Pérez (2009), called the iterated h-index, is studied to evaluate the productivity of scholars. It consists of successive applications of the h-index so as to obtain a vector of h-indices. In particular, the iterated h-index fixes a drawback of the h-index since it allows for (lexicographic) comparisons...
There are real strategic situations where nobody knows ex ante how manyplayers there will be in the game at each step. Assuming that entry and exitcould be modelized by random processes whose probability laws are commonknowledge, we use dynamic programming and piecewise deterministicMarkov decision processes to investigate such games. We study the ...
This paper studies the optimal contract offered by a risk-neutral principal to a risk-averse agent when the agent’s hidden efficiency and action both improve the probability of the project being successful. We show that if the agent is sufficiently prudent and efficient, the principal induces a higher probability of success than under moral hazard,...
We introduce a non linear weighted Shapley value for cooperative games with transferable utility, in which the weights are endogenously given by the players' stand-alone worths. We call it the proportional Shapley value since it distributes the Harsanyi dividend (Harsanyi, 1959) of all coalitions in proportion to the stand-alone worths of its membe...
