This paper looks at potential implications emerging from including “shares” as a control variable in fixed effect estimations. By shares we refer to the ratio of a sum of units over another, such as the share of immigrants in a city or school. As will be shown in this paper, a logarithmic...

Recent application of the switching regression model to allocate workers into the primary and secondary labor markets is considered to be the best solution to the classification problem of the empirical testing of the dual labor market theory. In such models, normality of the error terms is...

A huge cross-section literature, written by economists and others, argues that human well-being is U-shaped through the life cycle. In many cases this U-shape is robust (with a well-known exception the pattern evident in some U.S. data sets if few independent variables are included). However, a...

This paper deals with the relationship between subjective well-being and ageing in the German Socio-Economic Panel (SOEP). The baseline results confirm the U-shaped relationship between life satisfaction and age, which has been found in many case studies by economists and others. Furthermore,...