Theory, historiography and empirical evidence suggest that agriculture is the key to economic development. This paper examines the extent to which productivity advances in British agriculture in the period 1620-1850 were driven by technological progress. Measuring technology by patents and new...

The aim of the paper is to discuss and to provide evidence for the existence of pecuniary knowledge externalities, considered here as the main cause of positive disequilibrium experience by downstream producers. This last effect, confirmed by the empirical analysis here performed, contrasts the...

The paper presents a new sectoral taxonomy that focuses on the existence of non negligible external effects, deriving from user-producer knowledge interactions, the latter in turn coupled with intermediate goods transactions, in a system of vertically integrated manufacturing and services...