Typically, when two people decide to become parents, they procreate by copulation and produce a child. What do people do if, for some reason, they can?t produce their own children but want to be parents? Today, a prospective parent can go to the web, drop a vial of sperm from a donor with...

This paper studies how an institution such as markets affects the evolution of mankind. My key point is that the forces of natural selection are made weaker because trade allows people to specialize in those activities where they are strong, and to offset their weaknesses by purchasing adequate...

We analyze the effects of accidents and liability obligations on the incentives of car manufacturers to monopolize the markets for their spare parts. We show that monopolized markets for spare parts lead to higher overall expenditures for consumers. Furthermore, while the manufacturers invest...

Biokraftstoffe werden weltweit in immer mehr Ländern von der Politik gezielt gefördert. Dies geschieht aus agrar-, energie- und klimapolitischen Gründen. Dieser Beitrag beschreibt die derzeitigen und zukünftigen Märkte für Biokraftstoffe und die Förderprogramme in einzelnen Ländern....

We apply the EMF 23 study design to simulate the effects of the reference case and the scenarios to European natural gas supplies to 2025. We use GASMOD, a strategic severallayer model of European gas supply, consisting of upstream natural gas producers, traders in each consuming European...