Parcourir Faculté des arts et des sciences – Département de sciences économiques - Travaux et publications par sujet "[JEL:C50] Mathématiques et méthodes quantitatives - Modélisation économétrique - Généralités"
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Cognition in Seemingly Riskless Choices and Judgments
(Université de Montréal. Département de sciences économiques., 1996)We instillate rational cognition and learning in seemingly riskless choices and judgments. Preferences and possibilities are given in a stochastic sense and based on revisable expectations. the theory predicts experimental preference reversals and ... -
An Eigenfunction Approach for Volatility Modeling
(Université de Montréal. Département de sciences économiques., 2001)In this paper, we introduce a new approach for volatility modeling in discrete and continuous time. We follow the stochastic volatility literature by assuming that the variance is a function of a state variable. However, instead of assuming that the ... -
Exact Nonparametric Two-Sample Homogeneity Tests for Possibly Discrete Distributions
(Université de Montréal. Département de sciences économiques., 2001)In this paper, we study several tests for the equality of two unknown distributions. Two are based on empirical distribution functions, three others on nonparametric probability density estimates, and the last ones on differences between sample moments. ... -
Jumps in the Volatility of Financial Markets
(Université de Montréal. Département de sciences économiques., 1999)Recent work suggests that the conditional variance of financial returns may exhibit sudden jumps. This paper extends a non-parametric procedure to detect discontinuities in otherwise continuous functions of a random variable developed by Delgado and ... -
Risk Aversion, Intertemporal Substitution, and Option Pricing
(Université de Montréal. Département de sciences économiques., 1998)This paper develops a general stochastic framework and an equilibrium asset pricing model that make clear how attitudes towards intertemporal substitution and risk matter for option pricing. In particular, we show under which statistical conditions ... -
Semi-Parametric Weak Instrument Regressions with an Application to the Risk-Return Trade-off
(Université de Montréal. Département de sciences économiques., 1999)Recent work shows that a low correlation between the instruments and the included variables leads to serious inference problems. We extend the local-to-zero analysis of models with weak instruments to models with estimated instruments and regressors ... -
A Theoretical Comparison Between Integrated and Realized Volatilies
(Université de Montréal. Département de sciences économiques., 2001)In this paper, we provide both qualitative and quantitative measures of the cost of measuring the integrated volatility by the realized volatility when the frequency of observation is fixed. We start by characterizing for a general diffusion the ...