Estimates of UK income inequality trends differ substantially according to whether estimates are based on household survey data (used for official statistics) or tax return data (used in the top incomes literature). We reconcile differences in variable definitions and combine survey and tax...

We provide the first survey-based look at levels and trends in income and its distribution from 1959 to 2016 by linking Current Population Survey data from 1967 through 2016 with decennial Census data for 1959. We find that the dramatic decline in the market income of the middle class (measured...

Patenting in software, cloud computing, and artificial intelligence has grown rapidly in recent years. Such patents are acquired primarily by large US technology firms such as IBM, Microsoft, Google, and HP, as well as by Japanese multinationals such as Sony, Canon, and Fujitsu. Chinese...