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...

Interpretation of historic grain price data may be hazardous owing to systematic grain quality variation – both cross sectionally and over varying time horizons (intra-year, inter-year, long run). We use the English wheat market, 1750-1914, as an example to quantify this issue. First, we show...

We estimate a time series model of weather shocks on English wheat yields for the early nineteenth century and use it to predict weather effects on yield levels from 1697 to 1871. This reveals that yields in the 1690s were depressed by unusually poor weather; and those in the late 1850s were...

In 1795 the British took control of the Cape colony (South Africa) from the Dutch; and in 1843 they exogenously changed the legal basis of landholding, giving more secure property rights to landholders. Since endowments and other factors were held constant, these changes offer clean tests of the...

Cointegration analysis has been used widely to quantify market integration through price arbitrage. We show that total price variability can be decomposed into: (i) magnitude of price shocks; (ii) correlation of price shocks; (iii) between-period arbitrage. All three measures depend upon data...

From 1770 to 1914, the British Government collected weekly price and quantity data for all types of grain traded in many market towns; these ‘Corn Returns’ were published in the London Gazette. We computerised the data published 1770-1864, totalling around 6 million data points. Here we...