Basmann, Robert L.; McAleer, Michael; Slottje, Daniel - Departament d'Economia Aplicada, Facultat de Ciències … - 2007
intellectual industrial property, namely patent activity, on technical change in the USA for the period 1947-1981. Patents should … of the GFT production function over time. Various types of US patent grant activity, specifically total, domestic …, foreign, successful and unsuccessful patent applications, are used as instruments for the technology-changer. Using the GFT …