This paper provides a theory of strategic innovation project choice by incumbents and start-ups. We show that prohibiting killer acquisitions strictly reduces the variety of innovation projects. By contrast, we find that prohibiting other acquisitions only has a weakly negative innovation effect, and we provide conditions under which the effect is zero. Furthermore, for both killer and other acquisitions, we identify market conditions under which the innovation effect is small, so that prohibiting acquisitions to enhance competition would be justified.
We study optimal employment contracts for present-biased employees who can conduct on-the-job search. Presuming that firms cannot offer long-term contracts, we find that individuals who are naive about their present bias will actually be better off than sophisticated or time-consistent individuals. Moreover, they search more, which partially counteracts the inefficiencies caused by their present bias.
Kommunikationspräfenzen im Kontext von Adipositas Eine qualitative Studie mit Teilnehmenden eines Gewichtsreduktionsprogramms Die Prävalenz der Adipositas fordert das deutsche Gesundheitswesen aktuell heraus. Wichtig sind Maßnahmen, die Betroffene unterstützen. Ärzte spielen in der Prävention und Behandlung von Folgeerkrankungen eine zentrale Rolle, wenngleich davon auszugehen ist, dass das Potenzial der Beratung nicht voll ausgeschöpft ist. Die vorliegende Studie untersucht mit qualitativer Methodik die Kommunikationspräferenzen von Personen mit Adipositas. Ausgehend von den Ergebnissen wird die Struktur für eine individualisierte Beratung entwickelt und ein Modell vorgestellt.
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