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Browsing ECO Working Papers by Author "GOTTARDI, Piero"
Now showing items 1-14 of 14
Title:Risk-sharing and contagion in networks
Author(s):CABRALES, Antonio; GOTTARDI, Piero; VEGA-REDONDO, FernandoDate:2013Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:The aim of this paper is to investigate how the capacity of an economic system to absorb shocks depends on the specific pattern of interconnections established among financial firms. The key trade-off at work is between ...
Title:Risk-Sharing and Retrading in Incomplete Markets
Author(s):GOTTARDI, Piero; RAHI, RohitDate:2012Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:At a competitive equilibrium of an incomplete-markets economy agents’ marginal valuations for the tradable assets are equalized ex-ante. We characterize the finest partition of the state space conditional on which this ...
Title:Dynamic Competitive Economies with Complete Markets and Collateral Constraints
Author(s):GOTTARDI, Piero; KUBLER, FelixDate:2012Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:In this paper we examine the competitive equilibria of a dynamic stochastic economy with complete markets and collateral constraints. We show that, provided both the set of asset payoffs and collateral levels are sufficiently ...
Title:Optimal Taxation and Constrained Inefficiency in an Infinite-Horizon Economy with Incomplete Markets
Author(s):GOTTARDI, Piero; KAJII, Atsushi; NAKAJIMA, TomoyukiDate:2011-01-01Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:We study the dynamic Ramsey problem of finding optimal public debt and linear taxes on capital and labor income within a tractable infinite horizon model with incomplete markets. With zero public expenditure and debt, it ...
Title:Flexible Contracts
Author(s):GOTTARDI, Piero; TALLON, Jean Marc; GHIRARDATO, PaoloDate:2011-01-01Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:This paper studies the costs and benefits of delegating decisions to superiorly informed agents relative to the use of rigid, non discretionary contracts. The main focus of the paper lies in the analysis of the costs of ...
Title:Value of Information in Competitive Economies with Incomplete Markets
Author(s):GOTTARDI, Piero; RAHI, RohitDate:2010Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:We study the value of information in a competitive economy in which agents trade in asset markets to reallocate risk. We characterize the kinds of information that allow a welfare improvement when portfolios can be freely ...
Title:Equilibrium Corporate Finance
Author(s):BISIN, Alberto; GOTTARDI, Piero; RUTA, GuidoDate:2010Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:We study a general equilibrium model with production where financial markets are
incomplete. At a competitive equilibrium firms take their production and financial
decisions so as to maximize their value. We show that ...
Title:Constrained Inefficiency and Optimal Taxation with Uninsurable Risks
Author(s):GOTTARDI, Piero; KAJII, Atsushi; NAKAJIMA, TomoyukiDate:2010Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:Should capital and labor be taxed, and if so how when individuals?labor and capital income
are subject to uninsurable idiosyncratic risks? In a two period general equilibrium model with
production, we ?rst show that ...
Title:Markets and Contracts
Author(s):BISIN, Alberto; GEANAKOPOLS, John; GOTTARDI, Piero; MINELLI, Enrico; POLEMARCHAKIS, HeraklesDate:2010Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:Economies with asymmetric information are encompassed by an extension of
the model of general competitive equilibrium that does not require an explicit
modeling of private information. Sellers have discretion over ...
Title:Illiquidity and Under-Valuation of Firms
Author(s):GALE, Douglas; GOTTARDI, PieroDate:2009Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:We study a competitive model in which market incompleteness implies that debt-financed firms may default in some states of nature and default may lead to the sale of the firms’ assets at fire sale prices when markets are ...
Title:Social Security and Risk Sharing
Author(s):GOTTARDI, Piero; KUBLER, FelixDate:2009Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:Social Security and Risk Sharing
Piero Gottardi
Felix Kubler
Abstract
In this paper we identify conditions under which the introduction of a pay-as-you-go social security system is ex-ante Pareto-improving in a stochastic ...
Title:Flexible Contracts
Author(s):GOTTARDI, Piero; TALLON, Jean Marc; GHIRARDATO, PaoloDate:2009Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:This paper studies the costs and benefits of delegating decisions to superiorly informed agents relative to the use of rigid, non discretionary contracts. Delegation grants some flexibility in the choice of the action by ...
Title:Markets for Information: Of Inefficient Firewalls and Efficient Monopolies
Author(s):CABRALES, Antonio; GOTTARDI, PieroDate:2009Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:In this paper we study, within a formal model, market environments where information is costly to acquire and is of use also to potential competitors. Agents may then sell, or buy, reports over the information acquired and ...
Title:Bankruptcy: Is It Enough to Forgive or Must We Also Forget?
Author(s):ELUL, Ronel; GOTTARDI, PieroDate:2008Type of Publication:Working PaperSeries/Report no.:EUI ECOAbstract:In many countries, lenders are restricted in their access to information about borrowers’ past defaults. We study this provision in a model of repeated borrowing and lending with moral hazard and adverse selection. We ...