In an economy with one riskless and one risky asset, we compare the Sharpe ratios of investment funds that allow: i) timing strategies which forecast the market using simple regressions; ii) a strategy which uses multiple regression instead; and iii) a passive allocation which combines the funds in...

This paper proposes a semiparametric proportional hazard model for bivariate duration data in the analysis of two-component systems. Examples include the two infection times of the left and the right kidneys of patients and the two retirement times of married couples. As a generalization of the...

Many common statistical models can be specified as linear models with restrictions imposed on the parameters. A large amount of these models impose restrictions which do not allow for the analytical construction of the probability density function (pdf) of the parameters given the restrictions....

We study the problem of estimating some unknown regression or autoregression function in a B-mixing dependent framework (for the design or the errors). For this end, we consider some collection of models which are finite dimensional spaces. A penalized least-squares estimator (PLSE) is built on...

A partir d'une description detaillee du deroulement concret des activites bord a quai, sur un terminal a conteneurs, des outils econometriques simples sont mis en oeuvre pour elucider les relations fonctionnelles entre les facteurs de production. La robustesse du modele de production propose est...

We develop a new methodology that measures conditional dependency. We achieve this by using copula functions that link marginal distributions, here chosen to obey a GARCH-type model with time-varying skewness and kurtosis. We apply this model to daily returns of stock-market indices. We find...

We consider whether the introduction of the psychological concept of loss aversion into agents' preferences could generate a macroeconomic model in which changes in the money supply can have real, persistent effects. It is demonstrated that the macroeconomic implications of loss aversion depend...

A general model of derived demand linkages in terms of technological interdependence of both the segments -modern and traditional- of a dual economy is developed.

This paper analyzes the relationship between age-specific fertility, mortality and real wages in Sweden during the demographic transition. We take an overlapping generations model of life cycle fertility and fit it to actual Swedish time-series data over the past two and a half centuries. The...

This paper investigates the influence of individual characteristics and the business cycle on the probability of entry into self-employment and on self-employment duration. We estimate multinomial logit and discrete competing risks models using data from a longitudinal sample of Spanish men for...