The European Environmental Agency (EEA) assigns periodically air pollution emission rights among the EC member states, who, in turn, share their respective endowment among the polluting firms. There exists a moral hazard problem since the EEA does not observe abatement efforts. We propose a...

Option pricing model with non-constant volatility models are compared to stochastic volatility ones. The non-constant volatility models considered are the Dupire's local volatility and Hobson and Rogers path-dependent volatility models. These approaches have the theoretical advantage of...

A regression graph which can be employed to enumerate and evaluate all possible subset regression models is introduced. The graph can be seen as a generalization of a previously introduced regression tree. Specifically, the regression tree describes a non-unique shortest path for traversing the...

In this paper we discuss a basic framework for a grid computing market. It has long been argued that pricing of computer resources can act as a scheduling protocol. We take this idea to its natural conclusion by discussing the basic properties of such a model. We introduce agents that own...

In a one-state one-control variable Quadratic Linear Problem, I examine the effect of an increase in the multiplicative uncertainty on the use of the control variable. In contrast with previous studies, this model considers a stochastic constant term in the transition equation. I found that the...

This paper examines different multivariate models to evaluate what are the main determinants when doing VaR forecasts for a portfolio of assets. To achieve this goal, we unify past multivariate models by using a general copula framework and we propose many new extensions. We differentiate the...

This paper estimates the relationship between the choice of website and the characteristics of the individual making this choice. What explain consumer website choice and is this consumer loyal to the same website? This paper approaches this question by modelling individual’s website...

We study the mechanism of inequality due to educational lock-in effects. Recent research on inequality such as Brock and Durlauf (2000a, b) and Durlauf (1999a, b, 2000) has emphasized the fact that the composition and behavior of groups to which a person belongs play an important role for...

We present a multivariate generalization of the simple markov-switching model. We allow for the introduction of several latent processes that have a simple parametric distribution. The matrix-variate bernoulli distribution yields a flexible yet parsimonious pattern of dependence between the...

Non-linear modeling approaches, including Smooth Transition Autoregressive (STAR) models, have attracted a great deal of attention over the last two decades. The empirical application of these models, however, is not always a straightforward task. In particular, parameter estimation and...