Now showing items 1-20 of 24

    • Adverse selection problems without the Spence-Mirrlees condition 

      Araújo, Aloísio Pessoa de; Moreira, Humberto Ataíde
      2000-07-01
    • Adverse selection problems without the spence-mirrlees condition 

      Araújo, Aloísio Pessoa de; Moreira, Humberto Ataíde
      2001-06-01
    • Aprendizado Evolucionário, Inércia Inflacionária e Recessão em Desinflações Monetárias 

      Moreira, Humberto Ataíde; Bonomo, Marco Antônio Cesar; Carrasco, Vinicius
      2000-11-01
      Este artigo busca justificar a evidência casual de que desin‡ações monetárias tendem a ser acompanhadas de queda no produto utilizando-se doarcabouç odaTeoriados Jogos Evolucioná rios. A aplicaç ã odeste arcabouç otem oseu ...
    • Biased managers, organizational design, and incentive provision 

      Moreira, Humberto Ataíde; Costa, Cristiano Machado; Ferreira, Daniel Bernardo Soares
      2004-02-01
      We model the tradeoff between the balance and the strength of incentives implicit in the choice between hierarchical and matrix organizational structures. We show that managerial biases determine which structure is optimal: ...
    • Common agency with informed principals 

      Martimort, David; Moreira, Humberto Ataíde
      2004-06-01
      We analyze a common agency game under asymmetric information on the preferences of the non-cooperating principals in a public good context. Asymmetric information introduces incentive compatibility constraints which ...
    • A contractive method for computing the stationary solution of the euler equation 

      Moreira, Humberto Ataíde; Maldonado, Wilfredo Fernando Leiva
      2002-09-01
      A contractive method for computing stationary solutions of intertemporal equilibrium models is provide. The method is is implemented using a contraction mapping derived from the first-order conditions. The deterministic ...
    • Contributions to the Theory of Optimal Tests 

      Moreira, Humberto Ataíde; Moreira, Marcelo J.
      2013-10-28
      This paper considers tests which maximize the weighted average power (WAP). The focus is on determining WAP tests subject to an uncountable number of equalities and/or inequalities. The unifying theory allows us to obtain ...
    • A critical value function approach, with an application to persistent time-series 

      Moreira, Marcelo J.; Mourão, Rafael; Moreira, Humberto Ataíde
      2016-06-06
      Researchers often rely on the t-statistic to make inference on parameters in statistical models. It is common practice to obtain critical values by simulation techniques. This paper proposes a novel numerical method to ...
    • Curso de matematica para economistas - Capitulo IV : otimização estatica 

      Cysne, Rubens Penha; Moreira, Humberto Ataíde
      1996-07
      Os autores objetivam, com este trabalho preliminar, bem como com aqueles que lhe darão continuidade, na sequência de composição de um livro de matemática para economistas, registrar as suas experiências ao longo dos últimos ...
    • Curso de matematica para economistas, Capitulo III: calculo no R 

      Cysne, Rubens Penha; Moreira, Humberto Ataíde
      1996-08
      Os autores objetivam, com este trabalho preliminar, bem como com aqueles que lhe darão continuidade, na sequência de composição de um livro de matemática para economistas, registrar as suas experiências ao longo dos últimos ...
    • Curso de matematica para economistas, Capitulos I e II: funções, algebra linear e aplicações 

      Cysne, Rubens Penha; Moreira, Humberto Ataíde
      1996-06
      Os autores objetivam, com este trabalho preliminar, bem como com aqueles que lhe darão continuidade, na sequência de composição de um livro de matemática para economistas, registrar as suas experiências ao longo dos últimos ...
    • Curso de matematica para economistas: capitulo V: otimização dinamica 

      Moreira, Humberto Ataíde; Cysne, Rubens Penha
      1996-09
      Os autores objetivam, com este trabalho, bem como com aqueles que lhe precederam (capítulos l, 2, 3 e 4) registrar as suas experiências ao longo dos últimos anos ministrando cadeiras de matemática nos cursos de pós-graduação ...
    • Do dividends signal more earnings? 

      Tsuchida, Marcos H.; Araújo, Aloísio Pessoa de; Moreira, Humberto Ataíde
      2004-02-01
      Signaling models have contributed to the corporate finance literature by formalizing 'the informational content of dividends' hypothesis. However, these models are under criticism of empirical literature, as weak evidences ...
    • A general lagrangian approach for non-concave moral hazard problems 

      Araújo, Aloísio Pessoa de; Moreira, Humberto Ataíde
      2000-07-01
      We establish a general Lagrangian for the moral hazard problem which generalizes the well known first order approach (FOA). It requires that besides the multiplier of the first order condition, there exist multipliers for ...
    • A general lagrangian approach for non-concave moral hazard problems 

      Araújo, Aloísio Pessoa de; Moreira, Humberto Ataíde
      2001-06-01
      We establish a general Lagrangian for the moral hazard problem which generalizes the well known first order approach (FOA). It requires that besides the multiplier of the first order condition, there exist multipliers for ...
    • Land taxes in a Latin American context 

      Assunção, Juliano Junqueira; Moreira, Humberto Ataíde
      2004-02-01
      Since Henry George (1839-1897) economists have been arguing that a tax on unimproved land is an ideal tax on efficiency grounds. Output taxes, on the other hand, have distortionary effects on the economy. This paper shows ...
    • A model of mixed signals with applications to countersignaling an the GED 

      Gottlieb, Daniel; Moreira, Humberto Ataíde; Araújo, Aloísio Pessoa de
      2004-07-01
      We develop a job-market signaling model where signals may convey two pieces of information. This model is employed to study the GED exam and countersignaling (signals non-monotonic in ability). A result of the model is ...
    • Non-monotone insurance contracts and their empirical consequences 

      Araújo, Aloísio Pessoa de; Moreira, Humberto Ataíde
      2003-11
      The goal of this paper is to show the possibility of a non-monotone relation between coverage ans risk which has been considered in the literature of insurance models since the work of Rothschild and Stiglitz (1976). We ...
    • Optimal two-sided tests for instrumental variables regression with heteroskedastic and autocorrelated errors 

      Moreira, Humberto Ataíde; Moreira, Marcelo J.
      2015-05-21
      This paper considers two-sided tests for the parameter of an endogenous variable in an instrumental variable (IV) model with heteroskedastic and autocorrelated errors. We develop the nite-sample theory of weighted-average ...
    • Pure strategy equilibria of multidimensional and non-monotonic auctions 

      Moreira, Humberto Ataíde; Araújo, Aloísio Pessoa de; Castro Filho, Luciano I. de
      2004-11-01
      We give necessary and sufficient conditions for the existence of symmetric equilibrium without ties in interdependent values auctions, with multidimensional independent types and no monotonic assumptions. In this case, ...