L’article propose une lecture critique de l’ouvrage de Landais, Piketty et Saez, Pour une révolution fiscale, 2011. Celui-ci propose de rendre la fiscalité française plus simple, plus juste, plus progressive. Il propose un instrument d’analyse, devant permettre à chaque citoyen...

La politique familiale française a deux objectifs : garantir la parité des niveaux de vie entre familles et personnes sans enfants ; assurer à tous les enfants un niveau de vie minimal. Elle comporte des prestations sous condition de ressources, une allocation universelle et le quotient...

La France se caractérise par la coexistence d’un impôt sur le revenu (IR) progressif, familialisé, compliqué et déclaratif, qui ne touche que la moitié des foyers (et rapporte 2,9 % du PIB) et de la Contribution Sociale Généralisée (CSG), impôt proportionnel, simple, perçu à la...

In this paper, I relate the degree of progressivity of the income tax scheme to the prevailing income inequality in the society. I find that, consistent with the data, more unequal societies implement more progressive income tax systems. I build a model of political coalition formation, where...

"Die Armutsmessung der empirischen Sozialforschung ist von einer Reihe von Annahmen und Setzungen abhängig, die Ausmaß und Struktur der Armutsbevölkerung beeinflussen. Äquivalenzskalen, Ermittlung des mittleren Einkommens als Referenzgröße und die Festlegung von Armutsschwellen führen zu...

In this paper we explore the effects of alternative combinations of fiscal and monetary policies under different income distribution regimes. In particular, we aim at evaluating fiscal rules in economies subject to banking crises and deep recessions. We do so using an agent-based model populated...

We build an agent-based model to study how the interplay between low- and high frequency trading affects asset price dynamics. Our main goal is to investigate whether high-frequency trading exacerbates market volatility and generates flash crashes. In the model, low-frequency agents adopt...

This paper contributes to the debate on fiscal governance for the European Monetary Union, assessing the different fiscal rules currently discussed. We simulate a small scale macroeconomic model with forward looking agents, augmented with a public finances block. We account for both the positive...

This paper models the organization of the firm as a type of artificial neural network in a duopoly setting. The firm plays a repeated Prisoner’s Dilemma type game, but must also learn to map environmental signals to demand parameters and to its rival’s willingness to cooperate. We study the...

A new algorithm is developed to solve models with heterogeneous agents and aggregate uncertainty that avoids some disadvantages of the prevailing algorithm that strongly relies on simulation techniques and is easier to implement than existing algorithms. A key aspect of the algorithm is a new...