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tandfonline.com har udgivet en rapport under søgningen “Teacher Education Mathematics”: ABSTRACT Formulae display:?Mathematical formulae have been encoded as MathML and are displayed in this HTML version using MathJax in order to improve their display. Uncheck the box to turn MathJax off. This feature requires Javascript. Click on a formula to zoom. ABSTRACT This paper employs goods and services descriptions from US trademarks to study spatial diffusion of innovations. Identifying novel, fast-spreading tokens (words) in trademark descriptions, we outline patterns of regional innovation and estimate how distance affects diffusion. Novel trademark tokens are frequently new to English, they capture many unpatented innovations, and their appearance in language co-evolves with their use in intellectual property filings. We analyse the introduction of novel tokens to capture the emergence of innovations and show that… Continue Reading →