Trade in services is often hampered by domestic administrative barriers, even when countries are members of the same regional trade agreement. We exploit a large reform in the European Union (the EU Service Directive) targeted to reduce such administrative hurdles in cross-border service...

Studies analyzing renewable energy market development usually investigate additional capacity or investment. Characteristics, roles and determinants of cross border trade with renewable energy system components remain blurred. Environmental regulation and renewable energy policies are important...

Helpman, Melitz and Rubinstein (2008) derive gravity equations to estimate effects of trade barriers on the intensive and extensive margins of trade. They exploit the frequency of zeros in aggregate bilateral trade data to identify effects on the extensive margin and to obtain controls for firm...