We examine the process of internationalisation of firms, contributing to the knowledge on the factors behind a successful entry and operation in the export markets using duration analysis. Rich longitudinal microlevel data on Finnish manufacturing plants allow an indepth analysis of the life...

Using 15 years of data on Finnish twins, we find that 24% (54%) of the variance of women's (men's) lifetime income is due to genetic factors and that the contribution of the shared environment is negligible. We link these figures to policy by showing that controlling for education reduces the...