There is a well-established debate between Heckman sample selection and two-part models in health econometrics, particularly when no obvious exclusion restrictions are available. Most of this debate has focussed on the application of these models to health care expenditure. This paper revisits...

In this paper we provide semiparametric estimation strategies for a sample selection model with a binary dependent variable. To the best of our knowledge, this has not been done before. We propose a control function approach based on two di erent identifying assumptions. This gives rise to...

This paper develops a three stage oligopoly game for R&D cooperation, R&D expenditure and product market competition. In the first stage, firms decide whether or not to conduct R&D in cooperation with other firms. In the second stage the level of R&D investment is determined. Finally, firms...

In the present study we investigate the relationship between foreign ownership and innovation activities using the firm-level data of the third Community Innovation Survey (CIS) covering 12 European countries. Probit estimates based on 28,000 firms observations show that foreign owned firms are...

Harmful algal bIoom species are the cause of important damages to marine living resources and human beings. These marine species are primarily introduced in North-European waters through ballast water, i.e. water trans-ported across the oceans so as to keep a vessel in balance. Port authorities...

In this paper I determine the importance of adjustment costs in employers' hiring decisions. Temporary work arrangements offer potential ways to avoid adjustment costs. I estimate employers willingness to pay for the characteristics of these work arrangements. I distinguish regular contracts,...

In this paper we compare the new satisfaction evaluation approach, developed inthe nineties by Oswald ,Clark , Blanchflower and others with the older incomeevaluation (IEQ) approach, developed by Van Praag and Kapteyn in theseventies of the previous century. We find that both approaches yield...

In the paper is considered identification of coefficients in equations explaining a continuous variable, say the number of sickness absence days of an individual per year, by cohort, time and age, subject to their definitional identity. Extensions of a linear equation to polynomials, including...

Identification of equations explaining a continuous variable, e.g., the length of sickness absence spells, by age, cohort and time (ACT), subject to their definitional identity is reconsidered. Various extensions of a linear equation to polynomials are explored. If no interactions between the...

The aim of this paper is two-fold: (a) to establish a 'map' for describing the wide class of Limited Dependent Variables (LDV) univariate and multivariate models in the econometric literature and (b) to localize typical models in this tradition within the structure, extending typologies of...