We examine the effect of prizes on innovation using data on awards for technological development offered by the Royal Agricultural Society of England at annual competitions between 1839 and 1939. We find large effects of the prizes on competitive entry and we also detect an impact of the prizes...

Using a large, new dataset of agricultural prices and quantities for many countries and regions, we create five new international Geary-Khamis pounds – for 1870, 1845, 1775, 1705, and a superior chained series. We show that estimated levels and changes in output per worker look very different...

We use modern econometric methods to analyze a recently-released sample of 3 000 Chinese grain yields. We find significant variation across provinces and persistent increases in yields over time – albeit slow compared to Europe and the New World. Growth rates for rice (the primary southern...