Public interest on income inequality increased during the last decade. Among scholars, one of the aspects that has been researched is how does income distribution affect innovation and technology adoption. On the one side, hopes for long term economic development highlight the need to understand what drives innovation. On the other side, inequalities are fuelling social unrest and public debate on what is the fair distribution of opportunities and benefits in our societies. Consequently, the question about the link between income inequality and innovation is becoming more and more attractive.