E-mail address request

To enhance author privacy, SSRN uses software to prevent mechanical harvesting
of email addresses. Anonymous users are allowed 3 email address requests each day.
Here are the email address(es) you requested:

Bronwyn H. Hall
  University of California at Berkeley   bhhall@econ.berkeley.edu
  University of Maastricht - Maastricht Economic Research Institute on Innovation and Technology (MERIT)   bhhall@econ.berkeley.edu

Christian Helmers
  London School of Economics & Political Science (LSE) - Centre for Economic Performance (CEP)   c.r.helmers@lse.ac.uk