Gabrielle Demange
Biographic Data
| ID | 1099795 |
|---|---|
| NAME | Gabrielle Demange |
| GIVEN NAMES | Gabrielle |
| FAMILY NAME | Demange |
| SIGNATURE | DEMANGE G |
| AFFILIATIONS | Paris School of Economics |
| ORCID | 0000-0003-2382-4988 |
| VERIFIED | Yes |
| TOTAL WORKS | 38 |
| TOTAL CITATIONS | 30 |
| AUTHOR COUNT | 38 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1982 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Dual communication in a social network: Contributing and dedicating attention
On the Choice of Central Counterparties in the EU
On the Resolution of Cross-Liabilities
Orderly Resolutions in a System of Financially Linked Firms
On the Market Structure of Central Counterparties in the EU
Profit-Sharing Rules and the Taxation of Multinational Internet Platforms
Mechanisms in a Digitalized World
Rumors and Social Networks
This article studies the transmission of rumors in social networks. We consider a model with biased and unbiased agents. Biased agents want to enforce a specific decision and unbiased agents to match the true state. One agent learns the true state and sends a message to her neighbors, who decide whether or not to transmit it further. We characterize the perfect Bayesian equilibria of the game, show that the social network can act as a filter, and…
Joint Design of Emission Tax and Trading Systems
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établisse…
The stability of group formation
Dans de nombreuses situations politiques et économiques, deux forces dominent la formation de groupes : d’une part les rendements attendus d’une coordination à l’intérieur d’un groupe croissent avec sa taille, d’autre part la diversité des préférences et des goûts freinent la coordination, défavorisant les groupes larges et hétérogènes. Lorsque ces deux forces, de direction opposée, sont à l’œuvre, on peut s’attendre à la formation de plusieurs g…
The stability of group formation
In a large range of political and economic situations, the formation of coordinated groups is driven by two opposite forces: increasing returns to size on the one hand, the heterogeneity of preferences, which hampers coordination, on the other. An important question is whether competitive pressures, such as described by free mobility and free entry, lead to an efficient and stable organization of the society into possibly several self-sufficient …
Données privées contre gratuité des services: Comment taxer les plateformes Internet
Communicating on electoral platforms
Mutual rankings
Optimal Targeting Strategies in a Network Under Complementarities
Quality of Education and the Number of Students: A General-Equilibrium Analysis
For a closed economy, we analyze the relation between the quality of higher education and the number of students. Within a two-period general-equilibrium model, we derive the optimal education policy - i.e., quality of and access restrictions to higher education - with observable ability, and contrast this with a setting where ability is unobservable and financial instruments are restricted to either taxes or fees. If the number of students incre…
A Ranking Method Based on Handicaps
Cash Providers: Asset Dissemination Over Intermediation Chains
A ranking method based on handicaps: A ranking method based on handicaps
Ranking methods are fundamental tools in many areas. Popular methods aggregate the statements of "experts" in different ways. As such, there are various reasonable ranking methods, each one of them more or less adapted to the environment under consideration. This paper introduces a new method, called the handicap-based method, and characterizes it through appealing properties. This method assigns not only scores to the items, but also weights to …
Diffusion of Defaults Among Financial Institutions
Financing Higher Education in a Mobile World
On party-proportional representation under district distortions
On the influence of a ranking system
David in Paris
Sharing information in Web communities
Multi-Item Auctions
A collection of items is to be distributed among several bidders, and each bidder is to receive at most one item. Assuming that the bidders place some monetary value on each of the items, it has been shown that there is a unique vector of equilibrium prices that is optimal, in a suitable sense, for the bidders. In this paper we describe two dynamic auction mechanisms: one achieves this equilibrium and the other approximates it to any desired degr…
On Group Stability in Hierarchies and Networks
A hierarchical structure is a widespread organizational form in many areas. My aim in this paper is to provide a rationale for this fact based on two premises. First, a group organizes itself so as to achieve efficient coordination. Second, efficient coordination is achieved only if subgroups as well as individuals agree to cooperate. Even in situations in which there are gains to coordination, the agreement of each possible subgroup may be impos…
Single-peaked orders on a tree
Rumors and Social Networks
This article studies the transmission of rumors in social networks. We consider a model with biased and unbiased agents. Biased agents want to enforce a specific decision and unbiased agents to match the true state. One agent learns the true state and sends a message to her neighbors, who decide whether or not to transmit it further. We characterize the perfect Bayesian equilibria of the game, show that the social network can act as a filter, and…
On party-proportional representation under district distortions
Single-peaked orders on a tree
Multi-Item Auctions
A collection of items is to be distributed among several bidders, and each bidder is to receive at most one item. Assuming that the bidders place some monetary value on each of the items, it has been shown that there is a unique vector of equilibrium prices that is optimal, in a suitable sense, for the bidders. In this paper we describe two dynamic auction mechanisms: one achieves this equilibrium and the other approximates it to any desired degr…
Information asymétrique et émission d'actifs
Demange Gabrielle, Laroque Guy. Information asymétrique et émission d'actifs. In: Revue économique, volume 45, n°3, 1994. pp. 639-656.
Retraite par répartition ou par capitalisation. Une analyse de long terme
Un large débat s'est ouvert dans les pays occidentaux pour modifier les systèmes de retraite basés sur la répartition. Il est souvent malaisé de déterminer les mécanismes à l'œuvre dans les études récentes, à base de simulations, qui cherchent à quantifier les enjeux. Nous espérons ici clarifier les effets à long terme d'une modification des régimes de retraite. Dans le cadre d'une économie à générations imbriquées, nous évaluons l'impact sur les…
Retraite par répartition ou par capitalisation: Une analyse de long terme
Retraite par répartition ou par capitalisation.Une analyse de long terme
Ouverture des systemes de retraite par repartition: L'impact du libre choix
The first pillars of pension plans in the various European countries widely differ in their contribution rates and intra-generational redistribution. What would be the impact of these differences if EU citizens had a free access to the various systems? This paper aims to highlight some basic features of this question in a very simple two countries model. Classification JEL?: H55, H87
Ouverture des systèmes de retraite par répartition: L'impact du libre choix
Les regimes de retraite de base des divers pays europeens different par le niveau de leur taux de cotisation et par la redistribution effectuee au sein d’une meme generation de retraites. Quel serait l’impact de ces differences si les citoyens de l’Union europeenne avaient un acces plus libre aux divers regimes ? Nous tentons ici d’apporter quelques elements de reponse a cette question en analysant un modele tres simple a deux pays
On Group Stability in Hierarchies and Networks
A hierarchical structure is a widespread organizational form in many areas. My aim in this paper is to provide a rationale for this fact based on two premises. First, a group organizes itself so as to achieve efficient coordination. Second, efficient coordination is achieved only if subgroups as well as individuals agree to cooperate. Even in situations in which there are gains to coordination, the agreement of each possible subgroup may be impos…
Free Choice of Unfunded Systems: A First Assessment
The strategy structure of some coalition formation games
Free Choice of Unfunded Systems: A Preliminary Analysis of a European Union Challenge
European union
Financing Higher Education and Labor Mobility
The Provision of Higher Education in a Global World--Analysis and Policy Implications
Mobile students and graduates react to the institutional framework of higher education and on their turn induce changes in governmental policies. In this article, we are interested in how governmental decisions about the financial regime and the quality level of higher education interact with individual incentives to invest in higher education in closed economies and in economies open to migration. We show that mobility of (part of) the populatio…
David in Paris
Sharing information in Web communities
On the influence of a ranking system
Financing Higher Education in a Mobile World
On party-proportional representation under district distortions
Diffusion of Defaults Among Financial Institutions
A Ranking Method Based on Handicaps
Cash Providers: Asset Dissemination Over Intermediation Chains
A ranking method based on handicaps: A ranking method based on handicaps
Ranking methods are fundamental tools in many areas. Popular methods aggregate the statements of "experts" in different ways. As such, there are various reasonable ranking methods, each one of them more or less adapted to the environment under consideration. This paper introduces a new method, called the handicap-based method, and characterizes it through appealing properties. This method assigns not only scores to the items, but also weights to …
Quality of Education and the Number of Students: A General-Equilibrium Analysis
For a closed economy, we analyze the relation between the quality of higher education and the number of students. Within a two-period general-equilibrium model, we derive the optimal education policy - i.e., quality of and access restrictions to higher education - with observable ability, and contrast this with a setting where ability is unobservable and financial instruments are restricted to either taxes or fees. If the number of students incre…
Optimal Targeting Strategies in a Network Under Complementarities
Joint Design of Emission Tax and Trading Systems
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établisse…
Computer Science (21 works) · Economics (19 works) · Business (13 works) · Political science (12 works) · Game Theory and Voting Systems (11 works) · Game Theory and Applications (10 works) · Mathematics (9 works) · Mathematical economics (8 works) · Microeconomics (8 works) · Artificial Intelligence (7 works)