Incomes per capita have grown dramatically over the past two centuries, but the increase has been unevenly spread across time and across the world. Growth accounting is the principal quantitative tool for understanding this phenomenon, and for assessing the prospects for further increases in...

Recent studies have shown that knowledge-based capital (KBC) is an important source of economic growth in many of the world’s advanced economies (much more so than R&D alone) and is positively correlated with real GDP per capita in a cross-section of these economies. This literature is still...