We investigate patterns in common ownership networks between firms that are active in the US pharmaceutical industry for the period 2004-2014. Our main findings are that "brand firms" - i.e. firms that have R&D capabilities and launch new drugs - exhibit relatively dense common ownership...

Ownership of publicly listed German companies has undergone significant changes in recent years. The aim of this report is to document these trends since 2007 and analyze the extent to which firms that compete in the same product market are owned by the same investors, which is known as common...

Die Eigentümerstrukturen börsennotierter deutscher Unternehmen haben sich in den letzten Jahren deutlich verändert. Von besonderem Interesse ist dabei das Phänomen der gemeinsamen Eigentümerstrukturen, das international mit dem Begriff "Common Ownership" bezeichnet wird. Dabei werden...

We investigate patterns in common ownership networks between firms that are active in the US pharmaceutical industry for the period 2004-2014. Our main findings are that "brand firms" - i.e. firms that have R&D capabilities and launch new drugs - exhibit relatively dense common ownership...

Este trabajo analiza el papel de la competencia en la gestión pública, para lo cual toma como referencia la organización burocrática basada en centros de gasto que no cobran por sus servicios y suelen ser demasiado grandes e ineficientes. Para introducir competencia, se da libertad de...

We consider a procurement problem in which the procurement agent is supposed to allocate the realization of a project according to a competitive mechanism that values bids in terms of the proposed price and quality. Potential bidders have private information about their production costs. Since...