In this paper we reconsider the formal estimation of the risk of financial intermediaries. Risk is modeled as the variability of the profit function of a representative intermediary, here bank, as formally considered in finance theory. In turn, banking theory suggests that risk is determined...

In this paper we consider the ducial argument of Fisher from the point of view of constructing e cient approximations of (or importance distributions to) posterior distributions in econometric models with intractable likelihood functions. The importance or proposal distributions are used along...

In this paper we consider statistical inference using Approximate Bayesian Computation (ABC) and resolve two problems: The choice of summary statistics and the choice of constant in deciding whether synthetic and real data are close in a certain norm. We argue that the natural choice for summary...

In this paper we take up Bayesian inference in multivariate stable distributions through innovative multivariate stable copulae. The problem that the characteristic function is defined through a difficult object, the spectral measure is completely bypassed by our approach. The new methods are...

In this paper we take up Bayesian inference in general multivariate stable distributions. We exploit the representation of Matsui and Takemura (2009) for univariate projections, and the representation of the distributions in terms of their spectral measure. We present e cient MCMC schemes to...

In this paper we take up Bayesian inference in general, multivariate stable distributions. We use approximate Bayesian computation (ABC) along with carefully crafted proposal distributions for the implementation of MCMC. The problem of selecting summary statistics in ABC is resolved through the...

We examine herding behavior in the US stock market, employing 30 blue chip companies of the Dow Jones Industrial Average Index, through 2001-2011. We propose a novel multivariate stochastic volatility methodology extended to allow for common factors that detect and measure the contribution of...

In this paper we consider the possibility that a firm may use costly resources to improve its technical efficiency. Results from static analyses imply that technical efficiency is determined by the configuration of factor prices. A dynamic model of the firm is developed under the assumption that...

In an in fluential paper Berger and Mester (1997) have proposed the alternative profi t function. It is widely thought that the alternative profi t function does not result in any useful duality properties. We show, in this study, that quite the opposite is true and, in fact, one can recover,...