the productivity of firms and the existence of possible complementarities between these different forms of innovation …

This Paper develops a framework for testing discrete complementarities in innovation policy using European data on … obstacles to innovation. We propose a discrete test of supermodularity in innovation policy leading to a number of inequality … constraints. We apply our test to two types of innovation decisions: to innovate or not, and if so, by how much. We find that …

Community Innovation Survey (CIS) data for 14 European countries. Our model incorporates three groups of variables which could … firm, the second group measures different innovation activities and the third group describes the internationalisation of …