We use the non-parametric Data Envelopment Analysis (DEA) and the parametric Stochastic Frontier Analysis (SFA) to workout efficiency and productivity of the ICT sector across 50 countries for the time period 2016 and 2020. By considering OECD -DSTRI index as bad output, the study intends to...

Frontmatter -- Preface -- Contents -- The setting of the problem -- Patent statistics -- The role of intellectual stimuli -- The use of important inventions as a cause of further inventions -- Productivity advance: A Case of supply and demand? -- The amount of invention is governed by the extent...