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...

The Penn World Table displays a set of national accounts economic time series covering many countries. Its expenditure entries are denominated in a common set of prices in a common currency so that real quantity comparisons can be made, both between countries and over time. It also provides...