This paper explores an algebraic relationship between two types of coefficients for a regression with several predictors and an additive binary group variable. In a general regression, the regression coefficients are allowed to be group-specific, the restricted regression imposes constant...

When a sample combines data from two or more groups, multivariate regression yields a matrix-weighted average of the group-specific coefficient vectors. However, it is possible that the weighted average of a specific coefficient falls outside the range of the group-specific coefficients, and it...

This paper explores an algebraic relationship between two types of coefficients for a regression with several predictors and a group structure. In a general regression, the regression coefficients are allowed to be group-specific, the restricted regression imposes constant coefficients. The key...

In the early 1990s, the Dutch social partners agreed upon transforming the generous and actuarially unfair PAYG early retirement schemes into less generous and actuarially fair capital funded schemes. The starting dates of the transitional arrangements varied by industry sector. In this study,...

In this paper, we study gains and losses that accrue to natives because of immigration. The gain on the aggregated level is called the ?immigration surplus?, which can be seen as analogous to a consumer surplus. We derive changes in the earnings of native owners of production factors by...

Using the Dutch Labour Force Survey 1991-2001, the authors investigate the incidence of part-time employment in the country with the highest part-time employment rate of the OECD countries. Women fulfil most part-time jobs, but nevertheless a considerable fraction of men works part-time as well....

In the empirical literature on labour supply, several static models are developed to incorporate constraints on working hours. These models do not address to what extent working hours are constrained within jobs, and to what extent working hours can be adjusted by means of changing employer. The...