When contributing content on large online platforms, producers of user-generated content have to decide where to contribute. On a complex and dynamic platform like wikipedia, this decision is expected to depend on the way the content is organized. We analyse whether the hyperlinks on Wikipedia...

Object of research -- Native language acquisition and foreign language learning -- Using corpus-based online tools for and data-driven text production and learning in business English -- Empirical study -- Discussion of findings and outlook -- Reference list -- Appendix

This paper studies the role of training vouchers and caseworkers in public training programs. Using a rich administrative data set, we apply matching and regression methods to measure the effect of the Hartz reform in Germany, which introduced training vouchers and imposed more selective...