This paper develops an indicator that combines the area that residents can reach within a certain time of travel with population density to create a proxy for “accessibility”, i.e. access to employment and consumption opportunities. Using a large scale firm level dataset, with nearly one...

"Procurement projects often encounter unanticipated problems. Deadlines and penalties are one important instrument used to incentivize contractors to adapt their plans. We develop a theory of highway procurement in which contractors must modify their construction rate following a productivity...

This Background Report has been produced as part of the study on “Development of statistical data on the European security technological and industrial base” commissioned by the European Commission within the Framework Contract on Security (ENTR/09/050) between the European Commission and a...